Having analyzed the failure - free working possibility of the main frictional mates in gas outfits of automobiles , it is the life of the said frictional mates that directly affects the reliability of the whole engine 由发动机配气机构主要摩擦副无故障工作的概率分析得知，摇臂机构摩擦副的使用寿命直接影响了整机运行的可靠性。
Nibco ' s new circuit balancing valves control and maintain a comfortable indoor climate while saving energy and reducing costs . these control valves ensure trouble - free operation and ease of maintenance 在节约能源和降低成本的同时，美国尼伯科的流量平衡阀控制调节和维持一个舒适的室内环境。这些控制阀保证无故障运行，并且维护保养简便易行。
The use of stainless steel , the welded cover of the dms measuring elements and the used of a glass leadthrough for the cable connection allow the equipment to be used without problems , even under unfavourable environmental conditions 该元件由不锈钢制作， dms测量元件有焊接表层且连接电缆使用了玻璃套管。这些使设备即使在恶劣环境下也能无故障工作。
For trouble - free longevity , it is also equipped with a ball check valve which is a third - check member , its main function being to prevent backpressure on each pump cycle from unnecessarily acting directly on the check members 为了保证长期无故障使用寿命，这种装置还配置球型止回阀作为第三个止回阀元件，它的主要功能在于防止每个泵循环产生的反压力不必要直接作用在止回阀元件上。
This model is used to generate residual signal by comparing the healthy signal and the signal in the running system . by processing the residual signal , faults from incipient fault to serious fault can be detected effectively 利用这个模型，通过比较无故障信号和系统实际产生的信号，产生一个残差信号，并对残差信号进行适当处理，就可以对系统从初始故障到严重故障，进行有效地监测。
And it is commonly regarded as fault - free when the comparative deviation of component parameters are within 5 % of the nominal value , while in practical operations the allowance range could be set flexibly according to different requirements for the circuit performance 通常认为元件参数的相对偏差绝对值在标称值的5 %范围内为无故障,但实际上元件的容差是可以根据对电路性能的不同要求而灵活设定的。
Three different d - fronts are defined in this paper , and the test generation is consisted of three parts : to excite the fault at first ; to maximize the iddt difference between fault - free circuit and faulty circuit at second ; and finally to minimize the effect of bypass 文中定义了三种不同的d前沿，并将测试生成分为三个部分： 1 、激活故障， 2 、使无故障电路和故障电路的瞬态电流差别最大化， 3 、减少旁路的影响。
Reconfigurable flight control systems are control systems that are characterized by the ability to perform in the presence of drastic changes in the system dynamics due , for example , to abrupt system component failures or rapid changes in the operating conditions 可重构飞行控制系统能够根据预先设定的故障模式，自动地调节故障后系统的控制律。注重于使用无故障元件获得更大效益、补偿故障元件的功能，有利于保持系统的安全运行，最大限度地执行设定的控制指令。
The paper proved under these condition , the fault tolerance of the network is improved remarkably . more , if under the fault - tolerant systems , how to find a free path from any two free processors ? that related to fault tolerant routing which is also hot recently 当互连网络中故障处理器数不大于其容错度时，即保证网络中任两个处理器间都有至少一条可靠路径时，如何高效地在两个无故障处理器间找到一条尽可能短的无故障路径，即为互连网络的容错路由选择问题。
