往复

The stuffing box is the kernel hermetic component of the high pressure reciprocating pump .

填料函是高压往复泵的密封部件，改进前，填料函与泵体连接处榫面上频繁发生断裂的现象直接影响了高压往复泵的运行寿命。

When felting machine's reciprocated journey was 170→180mm, reciprocated frequency was 126→158 times min1, the speed of pilot driven shaft was 80→100 rmin^(-1), the space between pilot socket plate was 95mm, it had much better forming result for the length of 100-200mm bacilliform wood stick, the average rate of oriented forming was over 70%.

铺装头往复行程170~180mm，往复频率126~158次min^(-1)，导向驱动轴转速80~100rmin^(-1)，导向槽板间距95 mm时，对长度100~200mm木束定向铺装效果较好，平均定向铺装率达70%以上。

The ensemble structure and working principle of clip electrochemical burring device are discussed in detail.

详细论述了夹片电化学去毛刺装置的总体结构、工作原理，整个装置由间歇往复输送机构、夹片模具、电解液循环装置和清洗装置组成，最后对间歇往复输送机构、夹片模具等进行设计计算。

The small end of connecting rod acts to-and-fro movement, and the big end of acts circumvolve movement. The connecting rod body acts complex plane movement. The connecting rod is one of the accessories that endures heavy load. And at the same time it endures gas pressure transmitted from the piston, the to-and-fro inertia force and inertia force engendered when itself swings.

连杆工作的小端作往复运动，大端作旋转运动，杆身做复杂的平面运动，连杆是承受负荷最严重的零件之一，同时承受着活塞传来的气体压力、往复惯性力和它本身摆动时所产生的惯性力的作用，这些力的大小和方向周期性变化，易引起连杆疲劳破坏。

The rapid back_and_forth grinding method was adopted in the precision machining of the curve point of the blanking punch, and the processing efficiency was effectively enhanced.

介绍了IC芯片管脚簧片精密冲裁加工中冲裁凸模的加工现状及存在的问题，在冲裁凸模曲线刃口的精加工中引入快速往复磨削加工方法可以有效提高加工效率，还分析了快速往复磨削加工的特征。

Reciprocating pump is a positive displacement pump is dependent on the piston pump cylinder for reciprocating motion to change the volume of work, so as to achieve the purpose of transmission fluid.

往复泵是容积式泵的一种，是依靠泵缸内的活塞作往复运动来改变工作容积，从而达到输送液体的目的。

The excitation sources of vibration in a in-line 4-cylinder engine include second-order inertia force induced by piston reciprocating movement and rolling moment caused by the side force exerted on cylinder.

四缸发动机的主要激振源为活塞往复运动产生的往复惯性力和气缸承受的侧压力产生的倾覆力矩。

The above multiple changes will produce 2 kinds ofwaves, Matter waves and mechanical wavesthat spread at the same time. Because the electromagnetic wave is amatter wave, it is the medium. Since the multiple exchanges of theelectrons state can be regarded as electrical vibration, and thevibrated electrons have magnetic fields and electrical fields at the same time, the electromagnetic wave will be produced. Then, because the electron itselfis a matter micro particle, it can producemechanical waves which can propagate outside withelectrical magnetic waves.

这种状态改变的多次往复，就会产生两种波，一种物质波，即电磁波；一种机械波，并且这种机械波是以同次产生的电磁波为媒质进行传播的，，这是因为本种状态的多次往复，可以看作是一种电子振动，振动的电子同时具有磁场和电场，所以能够产生电磁波，又因为电子本身是一个物质微粒所以他能够产生机械波，并且是横波，并随电磁波进行向外传播。

The high pressure pump has one or more reciprocating pumping plungers (14) and a pumping plunger actuator (62, 48, 66) driven by the drive shaft for reciprocating each pumping plunger to provide alternating intake and pumping phases of operation of the high pressure pump, at a frequency determined by the rotational speed of the drive shaft, for respectively receiving an intake charge of fuel and delivering fuel at high pressure for fuel injection.

高压泵具有一个或多个往复移动的泵送柱塞（14）和一个泵送柱塞驱动装置（62，48，66），其由驱动轴驱动，以便往复移动每个泵送柱塞，从而在由驱动轴转速决定的频率下提供高压泵工作的交替的吸入和泵送相，以便分别接受燃油的吸入量和为燃油喷射高压输送燃油。

With the help of performance test of reciprocating pump, the design for the spring was validated. An experiment-bed was also built to test the poppet valve's lift displacement. The testing results prove that the simulation was in a correct way.

设计了往复泵泵阀试验台；通过对往复泵进行性能测试，对不同弹簧预紧力下阀门升程进行了测定，验证了仿真结果的合理性。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了