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By analyzing, the fault transient component of third harmonic voltage at neutral is approximately equal to that at terminal. Choosing their sum and difference as the action and restrai nt signal respectively, the protection detects the ground fault by comparing the spectrum energy of action and restraint signals.

该保护方案根据单相接地故障后机端和中性点 3次谐波电压的故障暂态分量近似相同的特点，把两个故障分量的相量和与相量差分别作为保护动作信号及制动信号，通过比较数据窗内相应信号的谱能量检测定子单相接地故障。

Through fluorescence spectrum and photocurrent action spectrum measurements,we found that fluorescence signal of CdS weakened after TiO_2 film was deposited CdSby electrodeposition, and accordingly improved photoelectric capability of TiO_2 filmand achieved sensitization action.

通过荧光光谱和光电流作用谱结果表明在TiO_2薄膜电极上采用电化学沉积法沉积CdS之后，CdS的荧光信号减弱，从而提高了TiO_2薄膜电极的光电性能，起到了敏化的作用。

Part Ⅱ: Determination of action spectrum, of patch and photopatch tests in patients with chronic actinic dermatitis The objective of this part is to confirm the roles of the action spectrum of CAD and the related photoallergens and contact allergens in the pathogenesis of CAD.

第二部分：慢性光化性皮炎作用光谱测定、光斑贴、斑贴试验确定CAD作用光谱和接触性变应原在CAD发病中的地位。

The engineer designing a control system must be sure that the action taken affects the variable to be controlled, that is, that the action taken affects the measured value.

工程师在设计控制系统时，必须确保控制行为是可控的，即，控制行为所影响的变量是可测量的。

Based on the study of the patent,the configuration and the action principle of a new variable displacement of double-action vane pump is discussed,which consists of floating block s.

介绍一种在专利技术基础上，含有浮动块的新型平衡式变量叶片泵的结构和工作原理，该泵应用在汽车转向助力泵等工况，是一种较有应用前景的新型叶片泵。

This paper discusses the configuration and the action principle of a new variable displacement of double-action vane pump, which consists of a floating block .

本文介绍了一种基含有浮动块的新型平衡式变量叶片泵的结构和工作原理，通过计算进行了流量输出对比，证明该泵应用在汽车转向助力泵等工况，是一种较有应用前景的新型叶片泵。

Constant Flow Valve and the constant flow regulating valve are different: there is only one fixed flow valve valve from the valve directly feel before and after the differential pressure valve, the implementation of change in valve resistance action can be "direct action type variable resistance valve "It should not regulate the flow line, so the use of Constant Flow Valve can not be implemented to change the total flow of energy to run, and this set the flow valve as there are no imports of expensive, in the past, domestic heating systems seldom used, and only at some central air conditioning system to see.

定流量阀和恒流量调节阀不同的是：定流量阀只有一个阀瓣，由这个阀瓣直接感受阀门的前后差压，执行改变阀门阻力的动作，可成为"直动式变阻力阀"，它不能在线调节流量，因此使用定流量阀无法实施改变总流量的节能运行，而且这种定流量阀国内没有，进口的价格昂贵，以往国内的供暖系统很少采用，只有在一些中央空调系统中见到。

In order to calculate the crack expansion life in the action of variable amplitude load for the metal bar with V-shaped notch, the formula of bar fracture frequency was obtained theoretically by setting a size of bar fracture region applied in the engineering. Based on it, the mathematic expression of crack expansion life of bar V-shapednotch tip in the action of variable amplitude load was built.

针对金属棒料在变幅载荷作用下需要较精确地获取其V形槽尖端裂纹扩展寿命的问题，通过给定一个工程上能接受的瞬断区尺寸，获得了棒料断裂频率的计算公式，在此基础上，建立了变幅载荷作用下棒料V形槽尖端裂纹扩展寿命的数学表达式。

Constant Flow Valve and the constant flow regulating valve are different:there is only one fixed flow valve valve from the valve directly feel before and after the differential pressure valve,the implementation of change in valve resistance action can be"direct action type variable resistance valve",闸阀;It should not regulate the flow line,so the use of Constant Flow Valve can not be implemented to change the total flow of energy to run,and this set the flow valve as there are no imports of expensive,in the past,domestic heating systems seldom used,and only at some central air conditioning system to see.

订流量阀和恒流量调节阀不同的是：定流量阀只需一个阀瓣，由这个阀瓣直接感受阀门的后后佳压，执行转变阀门阻力的动做，否成为"直动式变阻力阀"，facebook外白板，它没有能在线调节流量，研建课，因己运用定淌量阀无法实施改变合流量的节能运行，而且这种定流量阀海外不，入口的价钱昂贵，以来国内的供暖体系很少采用，只需在一些中央空调系统内见到。

Even is the usual size for "action-taking groups" according to research cited by Mancur Olson in The Logic of Collective Action .

EVEN是通常的大小"行动，采取团体"根据研究指出在曼库尔奥尔森的集体行动的逻辑。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。