| 1. | Cytyledons and future stalk called the hypocotyl elongate .
子叶和未来称为下胚轴的主轴延长。 |
| 2. | Venus has the distinction of spinning "backward" on its axis .
金星具有沿主轴反向自转的特性。 |
| 3. | As the crankshaft rotates, the crankpin swings in a circle around the shaft .
随着曲轴的转动，曲柄销绕主轴作圆周摆动。 |
| 4. | For a rigid body rotating about a principal axis, the angular acceleration is related to torque by t =ia .
对于绕主轴转动的刚体来说，角加速度与转矩的关系是TIa。 |
| 5. | Spindle feeds and speeds are controlled by selector levers which engage the proper gears in the drill head .
主轴的进能量和转速是通过选速杆使主轴箱中的适当齿轮相啮合而控制的。 |
| 6. | Driving power for the cutting tool comes from the rotation of the spindle, which is a hollow shaft that rotates in bearings .
刀具的驱动力来自主轴的旋转，主轴则是一根在轴承中旋转的空心轴。 |
| 7. | It is important to recognize that this structural linkage contains the web of the wheel, spin bearing and shaft in addition to the gimbal structure .
必须看到，在这结构链系中，除了框架结构之外，还包括转子的辐壁、主轴承与轴。 |
| 8. | The plain milling machine consists of a boxlike column, which houses the motor and the gears or belt mechanism for driving the spindle and table .
普通铣床有一个箱式立柱（床身），立柱装有电动机和齿轮或皮带轮装置，以驱动主轴和工作台。 |
| 9. | This rotation can be simplified by plotting the positions of the principal sections and principal axis on a stereographic net as described by jessop and wells from the rotations recorded .
按照杰索普和威尔士所论述的方法，根据记录下来的转动角，把主截面和主轴的位置画到一个极射赤平投影网上，可使上述过程简化。 |
| 10. | Technical specification for main shaft of large turbine
大型水轮机主轴.技术规范 |
