1.
Round and round, and up they jump.
圆球，圆球，蹦来蹦去。
2.
Deviation from perfect circular or spherical form toward elliptic or ellipsoidal form.
椭圆形，椭圆球从正圆或球形向椭圆或椭圆球的偏离
3.
rounded knob( on the handle of a sword))
（剑柄上的）圆球.
4.
integrating sphere
累计球(光度计的圆球)
5.
The earth is an oblate sphere.
地球是一扁圆球体.
6.
The transformation of model is the replacement of ellipsoid and elliptical cylinder for sphere and circular cylinder.
通过模型变换法,可用球体和圆柱体来代替椭圆球和椭圆柱。
7.
The earth on which we live is a big ball .
我们居住的地球是一个大圆球。
8.
a sphere on which a map (especially of the earth) is represented.
上面画着地图（尤其是地球的）的圆球。
9.
" Measurement of circumference and its variation for basketball, football, volleyball and handball"
GB/T14625.5-1995篮球、足球、排球、手球圆周长、圆周差的测量
10.
The earth should be elliptical.
地球应当是椭圆形的。
11.
That the earth is round is certain.
地球是圆的是确实的
12.
cylindrical grate ball mill
格子式圆筒形球磨机
13.
ellipsoidal head
椭球体的封头, 椭圆封头
14.
"Properly speaking, the earth is not round."
"正确地说,地球不是圆的。 "
15.
The circumference of the earth is almost 25000 miles/The earth is almost 25000 miles in circumference.
地球的圆周长约为25000.
16.
Planet Earth is an oblate solid.
地球是扁圆形的固体
17.
Columbus argues that the world is round.
哥伦布提出地球是圆的。
18.
The earth's circumference is nearly 25,000 miles.
地球的圆周约为25，000 英里。