例如，关于z轴的转动惯量,是∫∫∫δ
For example, the moment of inertia about the z-axis is dV the triple integral of x squared plus y squared density dV.
这有点奇怪，关于x轴的转动惯量跟y有关。
It is slightly strange but I have y in inertia about the x-axis.
关于绕z轴的转动惯量,到z轴的距离是多少？
OK, so moment of inertia about the z axis so, what's the distance to the z axis?
并给出了对坐标轴的转动惯量的简化计算公式。
A simplified computing formula of moment of inertia of the coordinate axes is given as well in this paper.
之后发动机曲轴转动起来，不需离合器和变速器输人轴的转动。
The engine crankshaft can then turn without turning the clutchdisc and the transmission input shaft.
在推导过程中，考虑了壳体微元在中面内的变形和绕各个轴的转动。
The deformations of the element in the middle surface of the shell and its rotation about all axes are considered in the derivation of these equations.
其密封件固有的安装裙被压紧在端盖上，可防止密封件随着轴的转动而转动。
It will be tightly fixed on the end cover which can prevent seals from rotating while shaft rotating.
该系统采用永磁式直流伺服电机为驱动源驱动撕带轴的转动，向包装机构供给撕带。
The permanent magnetic servo DC motor is used as the driving source of making the axis of the tear tape rotate to feed the packing mechanism with the tear tape.
合理确定齿轮泵的工作转速，使齿轮与轴的转动避开啮合共振频率，可以防止噪声加剧。
Rationally define the work gear pump speed, gear and the axis of rotation to avoid engaging resonance frequency, can prevent noise intensified.
而且它能使修整工具转动，可不考虑绕转动轴的转动对两移动轴的影响，故数控编程容易实现。
It can let the dressing tools turn around, influence of running around the rotating axis on the two moving axes wont be considered, thus the corresponding nc programming is easy.
这种自锁性能只能是手柄带动着齿轮轴的转动及齿条轴的移动，而不能是齿条轴带动着齿轮轴的转动。
This performance can only be handle driving a gear shaft to rotate and rack shaft to move, but not gear shaft drive gear shaft to rotate.
掌关节（10）、弯曲关节（5）、根关节（12）的弯曲关节（6）、根关节（13）具有相 互平行的转动轴，通过围绕转动轴的转动活动进行弯曲。
Both the palm joint 10, a bending joint 5, a bending joint 6 of the root joint 12 and the root joint 13, have a mutually parallel rotary shaft, and bend by rotary operation around this rotary shaft.
以你的脚为轴转动，不是你的背部。
他们认为地球曾绕着一个不同的轴转动。
每一组收缩都会对环绕在传动轴上的项圈产生压力，于是，这些搏动的肌肉会一齐连续地挤压传动轴，形成转动力，从而产生旋转。
As they do so, each pair applies pressure to a soft ring around the driveshaft. The pulsating muscles collectively and continuously pinch the shaft and apply a rotational force, causing it to turn.
这个世界正在转动，而轴是我们创建的工业。
The world is pivoting, and the axis is the industry we've built.
风吹动叶片旋转，叶片带动连接发电机的轴转动产生电流。
The wind spins the blades, which turn a shaft connected to a generator that produces electricity.
关于这个轴的,旋转动动量是多少？
What is the moment of inertia for rotation of a rod about this axis?
Lanchester的设计中，两个平衡轴以两倍于机轴转速，反向地转动，抵消了无用的次生振动。
In Lanchester's design, two balance shafts rotated in opposite directions at twice the crankshaft speed to cancel out the niggling secondary vibrations.
它也可以被写成，这里我写上,你们马上会发现原因，那就是转动惯量,取决于我选择，哪一个转动轴,乘以ω的平方。
1/2I So this can also be written as one-half I, C I put a C there you will see shortly why, because the moment of inertia depends upon which axis of rotation I choose times omega squared.
对于周围的水平轴转动工件。
转动的泵轴会弯曲变形，产生最大挠度。
Rotational deformation of the shaft will produce maximum deflection.
装配完成后，用手转动泵轴，没有擦碰现象，转动比较轻滑均匀即可，拆卸可按上述装配顺序相反的进行。
After assembly, move the pump shaft with hand, it should be smooth and uniform without touch. Disassembly can be made with the steps contrary to above ones.
圆盘绕一个通过中心与法线方向倾斜的轴转动。
Circular disk was rotating about an axis tilted from the normal through the center.
这样外侧车轮轴上的半轴齿轮比内侧车轮轴上的半轴齿轮转动更快。
Thus, the side gear on the outer-wheel axle turns more rapidly than the side gear on the inner-wheel axle.
地球在它的轴上每天转动一次。
合适的导轴承空隙，才可能同时保障转动轴与支座的振动均在准许范围内。
The appropriate guide bearing gap, it is possible to ensure that the vibration of the rotating shaft and bearings are within the permitted range.
合适的导轴承空隙，才可能同时保障转动轴与支座的振动均在准许范围内。
The appropriate guide bearing gap, it is possible to ensure that the vibration of the rotating shaft and bearings are within the permitted range.
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