1.
A small, circular or crescent - shaped opening in a vaulted roof.
半圆壁，弧形窗在高高的屋顶上的小的，圆的或新月形的开口
2.
The memorial has a large wall that is shaped in a half-circle.
纪念馆有一个半圆形的巨大墙壁。
3.
Determination of transitional fillet radius for hydroformed workpiece under wall thickness constraint
以壁厚约束的内高压胀形件过渡圆角半径确定
4.
Before I set up my tent, I drew a half circle before the hollow place, which took in about ten yards in its semi-diameter from the rock, and twenty yards in its diameter, from its beginning and ending.
搭帐篷前,我先在石壁前面划了一个半圆形,半径约十码,直径有二十码。
5.
Half-round bars for protection of lines to be provided at transom stern , poop deck, forecastle deck, and partly on the bulkhead.
为保护缆绳免受损伤，在艉封板后、尾楼甲板、艏楼甲板和部分舱壁处应装有半圆钢。
6.
A crescent-shaped or semicircular space, usually over a door or window, that may contain another window, a sculpture, or a mural.
弧形空间通常在门或窗上的新月形或半圆形空间，它可包含另外一个窗、雕刻或壁饰
7.
double radius button head snap
双半径半圆头铆钉窝子
8.
The half dome over an apse.
穹内半圆顶教堂后部的半圆形穹顶
9.
Study of the System of Cylinder Wall's Roundness Error Measurement Online
圆筒内壁圆度误差在线检测系统研究
10.
dangerous sector
危险半圆(北半球危险半圆在风暴轨迹的右边
11.
Woodruff keys--Types and dimensions
GB/T1099-1979半圆键型式尺寸
12.
a semicircle of chairs
排列成半圆形的椅子
13.
(used of the moon) more than half full.
（用来指月亮）大于半圆。
14.
Round head rivets
GB/T867-1986半圆头铆钉
15.
Round head rivets--Black
GB/T863.1-1986半圆头铆钉(粗制)
16.
precision semi-automatic universal cylindrical grinder
精密半自动万能圆磨床
17.
Cup head nib bolts
GB/T13-1988半圆头带榫螺栓
18.
Cup head square neck bolts
GB/T12-1988半圆头方颈螺栓