trihedral

triangular shaped wire

断面为三角形的钢丝

The Design of Steel Truss Corridor with Large Span and Triangular Cross-section

大跨度三角形截面钢桁架走廊的设计

the trigonometry of spherical triangles.

球面三角形的三角学。

a triangle whose interior angles are all acute.

内角均为锐角的三角形。

DA triangle with one90° angle is a right triangle.

一个角为90°的三角形是直角三角形。

Perfect hexagon is the most compact grouping of wires.

精确的六角形是最密实的钢丝束。

any triangular sail set forward of the foremast.

在最前面的三角形的帆。

a prism whose bases are triangles.

底面是三角形的棱柱。

A triangular pyramid.

三角形底面的金字塔

Slab: rectangular in cross-section, with rounded corners and more than 5cm in thickness.

大板坯--横断面为矩形，圆角，厚度在5cm上。

hook rope knife

切断井中钢丝绳的割刀

Entitled to sickness benefit

（组成三角形、矩形等平面图形的）边

Behavior of exterior spirally reinforced concrete column with rectangular cross-section

钢筋混凝土矩形截面柱绕丝加固的受力性能

the base of a triangle, pyramid, etc

三角形的底边、 角锥体的底面等.

A roof with two slopes that form a triangle at each end is called a gable roof.

有两个斜面的屋顶在两端各成一个三角形,称为山形墙屋顶。

Production of triangle strand wire rope and its technology development new characteristic

三角股钢丝绳生产和技术发展新特点

calculate the area of the triangle thus formed

计算这样形成的三角形的面积

any shape that is triangular in cross section.

横截面部分是三角形的任何形状。