英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

manganese    音标拼音: [m'æŋgən,iz]
n. 锰[金属元素]

锰[金属元素]

manganese
n 1: a hard brittle grey polyvalent metallic element that
resembles iron but is not magnetic; used in making steel;
occurs in many minerals [synonym: {manganese}, {Mn}, {atomic
number 25}]

Manganese \Man`ga*nese"\, n. [F. mangan[`e]se, It. manganese,
sasso magnesio; prob. corrupted from L. magnes, because of
its resemblance to the magnet. See {Magnet}, and cf.
{Magnesia}.] (Chem.)
An element obtained by reduction of its oxide, as a hard,
grayish white metal, fusible with difficulty (melting point
1244[deg] C), but easily oxidized. Its ores occur abundantly
in nature as the minerals pyrolusite, manganite, etc. Symbol
Mn. Atomic number 25; Atomic weight 54.938 [C=12.011].
[1913 Webster PJC]

Note: An alloy of manganese with iron (called ferromanganese)
is used to increase the density and hardness of steel.
[1913 Webster]

{Black oxide of manganese}, {Manganese dioxide} or {Manganese
peroxide}, or {Black manganese} (Chem.), a heavy black powder
{MnO2}, occurring native as the mineral pyrolusite, and
valuable as a strong oxidizer; -- called also familiarly
{manganese}. It colors glass violet, and is used as a
decolorizer to remove the green tint of impure glass.
[1913 Webster]


Mn \Mn\, n. (Chem.)
The chemical symbol for {manganese}.
[PJC]

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Need advice with Manganese Steel sword care : r SWORDS - Reddit
    Literally all steel has manganese in it, just in different amounts (generally between 0 3% and 2%) Calling it "manganese steel" is a marketing gimmick It's just carbon steel It looks like they may have left the black oxide layer on the blade from the manufacturing process for visual effect and you just scrubbed off an intended finish Leather sheaths are bad for swords because the leather
  • Low maintenance solution for removing manganese from well water? - Reddit
    Low maintenance solution for removing manganese from well water? I have high levels of manganese in my water but visually it looks very clear and I don’t get any brown stains on clothes My neighbours, with similar water profile, have a manganese filter that requires large amounts of salt to work
  • Treating Manganese in Well Water : r WaterTreatment - Reddit
    Water softeners do wonders for manganese and iron It should be able to handle your water fine I like kinetico k2060
  • Manganese Blue - PB33 : r DIYPigments - Reddit
    Manganese Blue - PB33 I finally came around to make some paint with a sample from my manganese blue experiments so I wanted to share my progress Some serious credit goes to CaCl2 for pointing me to a lot of information as well as input from GeneJocky Manganese blue can be best described as manganese (V) doped barium sulfate
  • Manganese glass vs Uranium glass : r uraniumglass - Reddit
    Manganese used to be added to glass as a clearifying agent to give it the appearance of crystal Most glowing glass looks best when lit with 365nm uv, but Manganese glass glows green ONLY when lit with 365nm uv light, it doesn't glow when hit with 395mn uv light, but uranium glass does glow under 395nm light
  • Has anyone experience with supplementing manganese? : r . . . - Reddit
    Has anyone experience with supplementing manganese? Manganese not magnesium What effect did it have on you? And i know it can be toxic in high amounts Archived post New comments cannot be posted and votes cannot be cast
  • Water consultant said black goo on faucet was high levels of manganese . . .
    Water consultant said black goo on faucet was high levels of manganese, but city water report says manganese at incredibly low levels (Philly)
  • [GT New Horizons] Manganese veins : r feedthebeast - Reddit
    Manganese veins spawn from 20-30 only That's an extremely narrow range Narrow enough that horizontal mining is feasible Basically any ore with a narrow range like this, if you really need it and don't care about finding other veins, normal tunnelling is the best way to go If you just tunnel horizontally at 25 or so you will find it eventually
  • Studies show that we should avoid iron, copper and manganese . . . - Reddit
    Copper and Manganese in Supplements Copper and manganese, like iron, are reactive metals that can generate oxidative compounds, including the hydroxyl radical, in the body
  • Manganese in well water : r water - Reddit
    I would recommend putting a 10 micron filter before everything else This should capture a bunch of the iron and manganese, depending on water usage this filter will need to be changed quite often 4-5 times a year Activated Carbon filters are just for esthetics, and add sweetness to the water Also if you are getting Manganese passed the 1 micron then the filter is blown out manganese is a





中文字典-英文字典  2005-2009