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rub    音标拼音: [r'ʌb]
n. 摩擦,困难,障碍,难点,磨损处
vt. 擦,搓,摩擦,惹怒
vi. 摩擦,擦破

摩擦,困难,障碍,难点,磨损处擦,搓,摩擦,惹怒摩擦,擦破

rub
n 1: an unforeseen obstacle [synonym: {hang-up}, {hitch}, {rub},
{snag}]
2: the act of rubbing or wiping; "he gave the hood a quick rub"
[synonym: {rub}, {wipe}]
v 1: move over something with pressure; "rub my hands"; "rub oil
into her skin"
2: cause friction; "my sweater scratches" [synonym: {rub}, {fray},
{fret}, {chafe}, {scratch}]
3: scrape or rub as if to relieve itching; "Don't scratch your
insect bites!" [synonym: {rub}, {scratch}, {itch}]

Rub \Rub\, v. t. [imp. & p. p. {Rubbed}; p. pr. & vb. n.
{Rubbing}.] [Probably of Celtic origin; cf. W. rhwbiaw, gael.
rub.]
1. To subject (a body) to the action of something moving over
its surface with pressure and friction, especially to the
action of something moving back and forth; as, to rub the
flesh with the hand; to rub wood with sandpaper.
[1913 Webster]

It shall be expedient, after that body is cleaned,
to rub the body with a coarse linen cloth. --Sir T.
Elyot.
[1913 Webster]

2. To move over the surface of (a body) with pressure and
friction; to graze; to chafe; as, the boat rubs the
ground.
[1913 Webster]

3. To cause (a body) to move with pressure and friction along
a surface; as, to rub the hand over the body.
[1913 Webster]

Two bones rubbed hard against one another.
--Arbuthnot.
[1913 Webster]

4. To spread a substance thinly over; to smear.
[1913 Webster]

The smoothed plank, . . .
New rubbed with balm. --Milton.
[1913 Webster]

5. To scour; to burnish; to polish; to brighten; to cleanse;
-- often with up or over; as, to rub up silver.
[1913 Webster]

The whole business of our redemption is to rub over
the defaced copy of the creation. --South.
[1913 Webster]

6. To hinder; to cross; to thwart. [R.]
[1913 Webster]

'T is the duke's pleasure,
Whose disposition, all the world well knows,
Will not be rubbed nor stopped. --Shak.
[1913 Webster]

{To rub down}.
(a) To clean by rubbing; to comb or curry; as, to down a
horse.
(b) To reduce or remove by rubbing; as, to rub down the
rough points.

{To rub off}, to clean anything by rubbing; to separate by
friction; as, to rub off rust.

{To rub out}, to remove or separate by friction; to erase; to
obliterate; as, to rub out a mark or letter; to rub out a
stain.

{To rub up}.
(a) To burnish; to polish; to clean.
(b) To excite; to awaken; to rouse to action; as, to rub
up the memory.
[1913 Webster]


Rub \Rub\, n. [Cf. W. rhwb. See Rub, v,t,]
1. The act of rubbing; friction.
[1913 Webster]

2. That which rubs; that which tends to hinder or obstruct
motion or progress; hindrance; obstruction, an impediment;
especially, a difficulty or obstruction hard to overcome;
a pinch.
[1913 Webster]

Every rub is smoothed on our way. --Shak.
[1913 Webster]

To sleep, perchance to dream; ay, there's the rub.
--Shak.
[1913 Webster]

Upon this rub, the English ambassadors thought fit
to demur. --Hayward.
[1913 Webster]

One knows not, certainly, what other rubs might have
been ordained for us by a wise Providence. --W.
Besant.
[1913 Webster]

3. Inequality of surface, as of the ground in the game of
bowls; unevenness. --Shak.
[1913 Webster]

4. Something grating to the feelings; sarcasm; joke; as, a
hard rub.
[1913 Webster]

5. Imperfection; failing; fault. [Obs.] --Beau. & Fl.
[1913 Webster]

6. A chance. [Obs.]
[1913 Webster]

Flight shall leave no Greek a rub. --Chapman.
[1913 Webster]

7. A stone, commonly flat, used to sharpen cutting tools; a
whetstone; -- called also {rubstone}.
[1913 Webster]

{Rub iron}, an iron guard on a wagon body, against which a
wheel rubs when cramped too much.

{Rub of the green} (Golf), anything happening to a ball in
motion, such as its being deflected or stopped by any
agency outside the match, or by the fore caddie.
[1913 Webster Webster 1913 Suppl.]


Rub \Rub\, v. i.
1. To move along the surface of a body with pressure; to
grate; as, a wheel rubs against the gatepost.
[1913 Webster]

2. To fret; to chafe; as, to rub upon a sore.
[1913 Webster]

3. To move or pass with difficulty; as, to rub through woods,
as huntsmen; to rub through the world.
[1913 Webster]

{To rub along} or {on}, to go on with difficulty; as, they
manage, with strict economy, to rub along. [Colloq.]
[1913 Webster]

315 Moby Thesaurus words for "rub":
Discordia, Eris, ablate, abrade, abrase, afflict, aggravate,
agonize, ail, air-dry, anhydrate, annoy, apple of discord,
attouchement, bake, bandage, bar, bark, bathe, bite, block,
blockade, blot, bone of contention, bone to pick, bother,
bottleneck, breath, brush, brush by, buff, burn, burnish, care for,
caress, casus belli, catch, catch a likeness, chafe, character,
characterize, chart, clash, clashing, climacteric, clutch,
come in contact, conflict, confrication, contact, contention,
contingence, convergence of events, convulse, cordon, crimp,
crisis, critical juncture, critical point, crossroads,
crow to pick, crow to pluck, crucial period, crucify, crunch, crux,
cure, curtain, cut, cutaneous sense, dehumidify, dehydrate,
delineate, depict, desiccate, determent, deterrent, diagnose,
diagram, difficulty, disaccord, disaffinity, discord, discordance,
discordancy, disharmony, distress, doctor, drain, draw, drawback,
dry, emergency, enmity, erase, erode, evaporate, exasperate,
excoriate, excruciate, exigency, exsiccate, extremity, feel,
feel up, feeling, fester, file, fingertip caress, finish, fire,
flick, flux, fondle, fray, frazzle, fret, frication, friction,
frictionize, frottage, furbish, gall, give care to, give pain,
glance, glaze, gloss, gnaw, gnaw away, grate, graze, grind, gripe,
grounds for war, hamper, hand-mindedness, hang-up, harrow, hazard,
heal, hinge, hit, hit off, hitch, hurdle, hurt, impediment,
impinge, impingement, impingence, incompatibility,
incompatibleness, inflame, inflict pain, inharmoniousness,
inharmony, insolate, irk, irritate, jangle, jar, joker,
kill by inches, kiln, kiss, knead, lacerate, lambency, lap, lick,
light touch, limn, luster, map, martyr, martyrize, massage,
minister to, mischief, mummify, nettle, nip, noncooperation, nose,
notate, nudge, nurse, nuzzle, objection, obstacle, obstruction,
obstructive, one small difficulty, open conflict, operate on,
osculate, osculation, pain, paint, parch, pass, peeve,
perfrication, pet, physic, picture, picturize, pierce, pinch,
plaster, polish, portray, poultice, prick, print,
prolong the agony, provoke, purge, push, put to torture, rack,
rankle, rasp, raze, register, remedy, render, represent, rile,
rub against, rub away, rub down, rub noses, rub off, rub out,
rubbing, ruffle, schematize, scorch, scour, scrape, scrub, scuff,
sear, sense of touch, shave, shine, shrivel, sideswipe, skim, skin,
skirt, sleek, slick, slick down, smoke, snag, soak up, sore point,
splint, sponge, squeak by, stab, sting, strained relations, strait,
strap, stroke, stumbling block, stumbling stone, sun, sun-dry,
swab, symbolize, tactile sense, taction, take a rubbing, tangency,
tap, tender spot, tension, tentative contact, tentative poke,
ticklish issue, torment, torrefy, torture, touch, touching, towel,
trace, trace out, trace over, traverse, treat, turn, turning point,
tweak, twist, unharmoniousness, unpleasantness, varnish, vex, wax,
wear, wear away, weazen, whisper, wipe, wither, wizen, wound,
wring, write



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  • How To Calculate SPI in 4 Steps (With Formula and Example)
    In this article, we explore what the schedule performance index is, what formula to use when measuring it, how to calculate SPI and how this metric differs from the cost performance index, along with an example of an SPI calculation
  • Schedule Performance Index (SPI): An Introduction
    The Schedule Performance Index Formula and How to Calculate SPI To find the schedule performance index, you must first find the planned value and the earned value SPI is then calculated by dividing this earned value integer by the planned value integer Therefore, the schedule performance index is a ratio of earned value to planned value
  • Schedule Performance Index (SPI) Explained with Examples - ProjectPractical
    How to Calculate Schedule Performance Index The formula of schedule performance index is: Schedule Performance Index (SPI) = Earned Value (EV) Planned Value (PV) SPI = EV PV A further clarification of the formula will be elaborated in the latter part of this article
  • What is SPI – Schedule Performance Index? - Ten Six Consulting
    How is SPI calculated? SPI is presented as a ratio It’s calculated by taking the budgeted cost of work completed (also known as the earned value or EV) and dividing it by the planned value
  • What is SPI Calculation? | A Step-by-Step Guide - Teamhub
    SPI calculation is a method used to assess and evaluate the efficiency of a project’s time management It compares the actual progress of a project to its planned schedule, indicating whether the project is ahead of schedule, on track, or falling behind
  • What is Schedule Performance Index (SPI) How to Calcuate It?
    SPI is easily calculated using the formula SPI = Earned Value (EV) ÷ Planned Value (PV) An SPI greater than 1 means the project is ahead of schedule, while an SPI less than 1 shows it is behind schedule An SPI of 1 indicates the project is perfectly on track The importance of SPI lies in its ability to provide an early warning system
  • How to Calculate SPI (Schedule Performance Index)
    SPI Formula The formula to calculate SPI is as follows: SPI = EV PV Where: – EV (Earned Value) represents the value of work completed at any given point in time – PV (Planned Value) refers to the scheduled worth of work predicted for that same period How to Calculate SPI: A Step-by-Step Guide Step 1: Define your project’s milestones
  • How To Calculate SPI In 5 Simple Steps (With Examples)
    Calculating SPI is a part of the EVM process Planned Value (PV): PV is the performance you had expected to accomplish at a certain point in the project timeline You can express it as the number of hours worked, units produced or milestones achieved Earned Value (EV): EV is the actual performance
  • Schedule Cost Performance Index, with Formulae Examples (SPI CPI)
    How Is the Schedule Performance Index Calculated? The schedule performance index is calculated with the same input values as the schedule variance, namely: Earned value (EV) Planned value (PV) The schedule performance index formula is: SPI = EV PV How to Interpret the SPI?
  • A Schedule Performance Index (SPI) Guide
    To calculate the Schedule Performance Index (SPI), you first need to find the Planned Value (PV) and the Earned Value (EV) Afterwards, divide EV by PV to get your SPI value Earned Value (EV), also known as Budgeted Cost for Work Performed (BCWP), represents the value of work that has been completed at a given point in your project timeline





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