1.
He might be forty years old; he stooped a little in walking.
他大概有40岁；走起路来，有点儿拱腰曲背。
2.
They douBled themselves up and stand on their hands and feet, to make the arches.
他们一个个都弯下腰，手脚着地，做成拱门的形状。
3.
the bees arch their waist when they gather nectar.
小蜜蜂采蜜时, 蜂腰拱起, 显出一副特别认真的样子。
4.
bottom arch bar
(拱板转向架)下拱板
5.
haunch of arch
梁腋, 拱腋, 拱的托臂
6.
To furnish(an arch) with a keystone.
用拱顶石装饰（拱顶）
7.
arched: Forming an arch or a curve like that of an arch.
拱形结构的: 形成拱或类似于拱的曲线。
8.
Forming an arch or a curve like that of an arch.
拱形结构的形成拱或类似于拱的曲线
9.
The arch bridges can be divided into the single-arch and the multi-arch varieties.
拱桥可以分为单拱桥和多拱桥两种。
10.
A lumbar artery, nerve, vertebra, or part.
腰动脉，腰神经，腰脊椎，或腰部
11.
an arch with a straight horizontal extrados and a slightly arched intrados.
一种拱背水平、拱的内面有个轻微弯曲的拱形。
12.
an arch whose jambs are not at right angles with the face.
拱的侧板与拱的正面搭配角度不对的拱。
13.
The Arched Bridge Arches Constructs Participates in the Host Arch Ringjoint Action Research;
拱桥拱上建筑参与主拱圈联合作用研究
14.
Control of the Shape of Concrete Fill Steel Tube Arch Bridge s Rib While it is Installation;
钢管混凝土拱桥拱肋吊装中的拱轴线形控制
15.
Ultimate Bearing Capacity Analysis of Long-Span Stone Arch Bridge with Arched Spandrel Structure
大跨径拱式拱上结构石拱桥极限承载力分析
16.
ched-type piling bar
(钢材) 拱形板桩
17.
Either of the sides of an arch, curving down from the apex to an impost.
梁腋，拱腋拱门上任意一个从拱顶到拱墩间的部分
18.
lumbosacral plexus
腰抵丛, 腰荐神经丛