为了避免出现运动部件的过早磨损、噪音或振动运行，就要根据流体状态选择止回阀的通径。
Premature wear and noisy operation or vibration of the moving parts can be avoided by selecting the size of check valve on the basis of flow conditions.
该系统正在迅速落伍，由于DIS和有更少运动部件和磨损因素的每罐线圈的引入，测量火花塞的电压是要求在不同条件下能跳掉插头。
This system is quickly becoming obsolete due to the introduction of the DIS and coil per cylinder systems with fewer moving parts and wear factors.
利用这些模型可数值模拟水轮机中含沙水流的流动、沙粒在水轮机过流通道内的浓度分布、运动轨迹及水轮机过流部件的磨损率。
These models can be used to predict the sandy water flow in hydraulic turbine, the sand particle trajectories in hydraulic ducts and the wear rates of hydraulic turbine components.
尾波还指出，由于缺乏必要的石油的变化，而减少了运动部件转化减少磨损。
Coda also points out the lack of need for oil changes, while a reduction in moving parts translates to less wear and tear.
当二个金属部件互在其上运动时它们将迅速地磨损。
When two metal parts move over each other they will wear away rapidly.
似乎是处于良好工作条件的台式机仍然具有太多的运动部件，包括受到磨损和牵拉的硬盘驱动器及风扇。
A desktop that appears to be in good working condition still has too many moving parts, including hard drives and fans, that are subject to wear and tear.
从流体动力学出发，研究了水轮机过流部件中的沙水运动、包括泥沙磨损机理、流动特性等。
Based on the hydrokinetics and the multiphase flow theory, the paper studied the motion Of sand and water's in the axial flow turbine, silt wear and the feature Of flow.
运动部件间的摩擦力使金属磨损，这就缩短了运动部件的使用寿命。
Friction % wears away metal in the moving parts, which shortens their working life.
该方案只使用平面反射镜，对于运动部件的精度要求比较低，对倾斜、磨损等不敏感。
This method requires only plane mirrors, and it is immune to tilt, wearing etc.
运动部件间的摩擦力使金属磨损，这就缩短了运动部件的使用寿命。
Friction wears away metal in the moving parts, which shortens their working life.
运动部件间的摩擦力使金属磨损，这就缩短了运动部件的使用寿命。
Friction wears away metal in the moving parts, which shortens their working life.
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