1.
There are various types of lines on the drawing such as: border lines, visible lines, invisible lines, break lines, phantom lines.
图上有各种形式的线条，诸如：边框线、线、线、面线、心线、出线、寸线、裂线、想线。
2.
spherical indicatrix of binormal to a curve
曲线副法线球面指标
3.
spherical indicatrix of tangent to a curve
曲线切线的球面指标
4.
water plane coefficient
(船舶)水线面系数
5.
Apple Desktop Bus
Apple桌面型总线
6.
bilinear profile
双线[声速]剖面图
7.
hydrofoil small waterplane area ship
水翼小水线面面积船
8.
forebody waterplane coefficient
前体水线面面积系数
9.
load waterline coefficient
满载水线面面积系数
10.
Surf-Surf Intersection Curve
曲面与曲面相交求曲线
11.
area of midship section
船体中段剖面面积曲线
12.
tangent-cone of a qualric
二次曲面的切线锥面
13.
A convex surface, body, part, or line.
凸面、凸面体、凸面部分或凸线
14.
A line or plane perpendicular to a given line or plane.
正交线（面）一条或一个与给定直线或平面垂直的直线或平面
15.
The point at which a line, or the curve in which a surface, intersects a coordinate plane.
交点，交线线与坐标平面相交的点或一表面与坐标平面相交的曲线
16.
Study on the problem of possition relationships between plane and plane,straight line and straight line and straight line and plane in space;
空间中平面与平面、直线与直线及直线与平面间位置关系研究
17.
Run the wire behind the cabinet.
延伸电线到橱柜后面。
18.
double generator of a ruled surface
直纹曲面的二重母线