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cycloid    
n. 摆线,轮转线
a. 圆形的,循环性格的

摆线,轮转线圆形的,循环性格的

cycloid
adj 1: resembling a circle [synonym: {cycloid}, {cycloidal}]
n 1: a line generated by a point on a circle rolling along a
straight line

Cycloid \Cy"cloid\ (s?"kloid), n. [Cyclo- -oid: cf. F.
cyclo["i]de.] (Geom.)
A curve generated by a point in the plane of a circle when
the circle is rolled along a straight line, keeping always in
the same plane.
[1913 Webster]

Note: The common cycloid is the curve described when the
generating point (p) is on the circumference of the
generating circle; the curtate cycloid, when that point
lies without the circumference; the prolate or
inflected cycloid, when the generating point (p) lies
within that circumference.
[1913 Webster]


Cycloid \Cy"cloid\, a. (Zool.)
Of or pertaining to the Cycloidei.
[1913 Webster]

{Cycloid scale} (Zool.), a fish scale which is thin and shows
concentric lines of growth, without serrations on the
margin.
[1913 Webster]


Cycloid \Cy"cloid\, n. (Zool.)
One of the Cycloidei.
[1913 Webster]


Brachystochrone \Bra*chys"to*chrone\, n. [Incorrect for
brachistochrone, fr. Gr. bra`chistos shortest (superl. of
brachy`s short) ? time : cf. F. brachistochrone. ] (Math.)
A curve, in which a body, starting from a given point, and
descending solely by the force of gravity, will reach another
given point in a shorter time than it could by any other
path. This curve of quickest descent, as it is sometimes
called, is, in a vacuum, the same as the {cycloid}.
[1913 Webster]


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  • What Do Giant Pandas Eat? - WorldAtlas
    Despite being members of the Carnivora order of animals, giant pandas feed on a diet consisting predominantly of plants, in particular bamboo Most Carnivoran creatures (or carnivores) are meat eaters who use their sharp claws and teeth to catch prey
  • Giant panda | Facts, Habitat, Population, Diet | Britannica
    As much as 90–98 percent of the panda’s diet consists of the leaves, shoots, and stems of bamboo, a large grass available year-round in much of China’s forested regions
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  • What Do Pandas Eat? And Other Fun Eating Facts - China Highlights
    Pandas like eating arrow bamboo, black bamboo, and 'water bamboo', along with about 20 other species They prefer bamboo roots, shoots, and leaves, especially shoots Pandas eat different types and parts of bamboo according to the season
  • What Do Pandas Eat (Other Than Bamboo)? | HowStuffWorks
    More than 99 percent of their diet is bamboo, and they chow down on about 26 to 84 pounds (12 to 38 kg) of it daily That’s like eating hundreds of heads of lettuce every day They consume different bamboo species, and their favorites include arrow bamboo, black bamboo and water bamboo
  • What Is A Giant Pandas Diet - [Vet Explains Pets]
    In the wild, their diet consists mainly of bamboo, which makes up about 99% of their total food intake They have evolved to rely on bamboo as their main food source, as it is abundant in the mountainous regions of China where they live
  • Diet Feeding - Giant Panda (Ailuropoda melanoleuca) Fact Sheet . . .
    Our website provides access to zoo, animal, plant, conservation, and veterinary information resources Although the site is open to the general public, librarian services and some resources are reserved for SDZWA staff and volunteers
  • The Evolution of Diet of Giant Pandas - Pandatribe
    Biologists have divided the current giant panda habitats into six major mountain ranges, where they can eat approximately 63 species of bamboo from 12 different genera Each mountain range’s giant pandas have their preferred bamboo species
  • Giant Pandas 101 - Education
    Giant pandas' habitat in the wild today is limited to the mountains of China, but their appetite remains unlimited They spend nearly every waking moment eating bamboo Learn about giant pandas and how their diet shapes their lives
  • Panda - WorldAtlas
    However, they eat bamboo almost exclusively They eat both the shoots and leaves of the bamboo plant, and it makes up 99 percent of their diet Outside of bamboo, pandas do occasionally eat fish, small mammals, or other plants





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