Abstract: It illustrates a ellipse's short semi-axial curved line with great cured radius, that can replace the straight line for cutting square work-pieces on the machine tool.
文摘:车方机床用曲率半径很大的椭圆短半轴曲线代替直线切削方形工件。
A short shaft that transmits motion from a motor to a machine, especially in an automobile.
传动轴，驱动半轴从马达传送动作给机器的短轴，尤指汽车
semimajor axis of ellipsoid
椭球长半轴，地球长半轴
Relationships between the minor axis semidiameter and major axis semidiameter have been empirically determined for different structural detail geometries.
对于不同结构细节的几何形状，已经确定了短轴和长轴半径之间的关系。
the shorter or shortest axis of an ellipse or ellipsoid.
椭圆的较短的轴或椭球中最短的轴。
Either half of the major axis is called a semimajor axis.
长轴的每一半叫做半长轴。
quadrature axis transient short circuit time constant
交轴瞬态短路时间常数
radial short cylindrical roller bearing
向心短圆柱滚子轴承
stub-supported coaxial
短截线支撑的同轴线
direct axis transient short circuit time constant
直轴瞬变短路时间常数
single row cylindrical roller bearing
单列短圆柱滚子轴承
leading half axle
（拖拉机转弯时）前进半轴
multi-spindle vertical semi-automatic lathe
立式多轴半自动车床
crankcase bottom half
发动机曲轴箱的下半部
reentrant cylindrical cavity
圆柱形凹腔, 半同轴空腔
rear axle differential side gear
后桥差速器半轴齿轮
The camshaft rotates in phase with the crankshaft, but at half its speed.
凸轮轴和曲轴协调旋转, 但速度仅是曲轴的一半。
The line AB is half as long as the line CD.
AB线比cd线短一半。