1.
flattened both on the outer surface
内外表面都略呈扁平形
2.
Ascending Triangle
上升三角形、平顶三角形
3.
parallelogram illusion
平行四边形错觉 平行四边形错觉
4.
Entitled to sickness benefit
（组成三角形、矩形等平面图形的）边
5.
2-Harmonic Submanifolds in a Conform Flat Riemannian Manifold
共形平坦黎曼流形的2-调和子流形
6.
The Submanifolds With parallel Mean Curvature Vector in a Locally Symmetric and Comformally Flat Riemannian Manifold;
局部对称共形平坦黎曼流形中的平行平均曲率子流形
7.
flattened and curled shape
变平或变弯曲的形状
8.
horizontal cell
水平细胞,星形[胶质]细胞
9.
average energy per ion pair formed
平均每离子对形成能
10.
horizontal trunk engine
平卧式筒形活塞发动机
11.
the situation is relatively calm now.
现在情形比较平稳定。
12.
bar-shaped automatic balanced recorder
条形自动平衡记录仪
13.
shape and dimension of refractory bricks for open-hearth furnace
平炉用耐火砖尺寸、外形
14.
pedestal voltage
平顶基座形脉冲电压
15.
A quadrilateral having no parallel sides.
没有平行边的四边形
16.
double link jib in parallelogram
平行四边形组合臂架
17.
fundamental period parallelogram
原始周期平行四边形
18.
parallel motion linkage
平行四边形悬挂装置