1.
Woodruff keys--Types and dimensions
GB/T1099-1979半圆键型式尺寸
2.
Semi-circular (Woodruff) keys--Dimensions of cross sections and keyways
GB/T1098-1979半圆键键和键槽的剖面尺寸
3.
This system does not require the use of a woodruff key.
这个系统并不需要使用一种半圆键.
4.
double radius button head snap
双半径半圆头铆钉窝子
5.
The half dome over an apse.
穹内半圆顶教堂后部的半圆形穹顶
6.
dangerous sector
危险半圆(北半球危险半圆在风暴轨迹的右边
7.
a semicircle of chairs
排列成半圆形的椅子
8.
(used of the moon) more than half full.
（用来指月亮）大于半圆。
9.
Round head rivets
GB/T867-1986半圆头铆钉
10.
Round head rivets--Black
GB/T863.1-1986半圆头铆钉(粗制)
11.
precision semi-automatic universal cylindrical grinder
精密半自动万能圆磨床
12.
Cup head nib bolts
GB/T13-1988半圆头带榫螺栓
13.
Cup head square neck bolts
GB/T12-1988半圆头方颈螺栓
14.
strong oval head square neck bolt
加强半圆头方颈螺栓
15.
a theater that offers semicircular seating.
提供半圆形坐椅的剧院
16.
reentrant cylindrical cavity
圆柱形凹腔, 半同轴空腔
17.
working flank radius
齿廓工作段圆弧半径
18.
plug-and-feather method
半圆铁棒夹楔劈石法