主要部件：双转子、机体、主轴承、轴封、平衡活塞及能量调节装置。
Main components: two-rotor, the body, the main bearings, shaft seal, balance and energy-conditioning Pistons.
密闭取心工具主要由外螺纹接头、平衡活塞、限位接头、内外筒、卡箍岩心爪、定位销、密封头、及取心钻头等部件组成。
Sealing coring tools mainly consists of external threaded adapter, balance piston, limit joint, inner and outer barrel, core catcher, locating pin, sealing head and coring bit.
如果我停下来，如果我缓慢地移动活塞，非常缓慢，结果这两个压强会平衡。
If I stop, if I move slowly, if I move more slowly then these two will want equilibrium.
为了平衡不受控制的力，连接活塞和机轴的杆不得不变得无限加长。
For the secondary forces to be in balance, the rods connecting the pistons to the crankshaft would have to be of infinite length.
活塞将上,移直到内外,压强达到平衡。
So it's going to shoot up until the internal pressure and the external pressure are in equilibrium.
弹簧平衡型、气动膜片或活塞，执行机构对于开关阀是首选的。
Spring opposed , air operated diaphragm or piston, actuators are preferred for on-off applications.
滑阀真空泵是一种容积式真空泵，在各工业领域广泛应用。但该泵的旋转活塞平衡长期以来无精确计算方法。
Rotary piston pump is a volume type vacuum pump and is applied widely, but there has been no method for exactly calculating dynamic balance of rotary piston up to the present.
介绍了作者自行设计的带冷凝器新型弹簧活塞式压力自平衡装置结构及其工作原理。
The structure and working mechanism on the new type of spring-piston pressure auto-balancing device with condenser was introduced.
缸块平衡块的活塞套壁薄，几何尺寸精度要求高，粗糙度要求严格，其质量好坏直接决定平衡块的寿命。
Hydraulic valve block balance weight piston sleeve has thin wall, high precision of geometry dimension and strict roughness, and its quality determines the lifetime of balance weight directly.
对于活塞式压力计的性能改进以及新型的强制平衡式活塞式压力计和数字式活塞式压力计的研制成功作了不少描述。
Several improvements on performance of piston gauge and the achievements of the novel forced balanced piston gauge and the digital piston gauge are described here.
本文详细研究了平衡阀控制活塞的结构形式和主要结构参数对系统动态性能的影响。
This paper makes a detailed study of the counterbalance valve and its sy tem, and discusses the effects of the control pistons forms and the main parameters on dynamic characteristic of the system.
在进行活塞式压缩机设计时，关于曲轴平衡块的设计计算大多采用试算法，计算量比较大。
The tentative calculational methods is used in the design of crank shaft balancer, the workload of which is very large.
使用滑裙活塞的原因是：短行程发动机需除去部分活塞裙部，从而为曲轴的平衡重让出空间。
One reason for the slipper piston is that, on the short-stroke, over square engine, the piston skirt had to be cut away to make room for the counterweights on the crankshaft.
假使两方面保持平衡，那么所有这些小的不规则的力对活塞的有效作用必须与重力相等。
The net effect on the piston of all these small irregular forces must be equal to that of the force of gravity if there is to be equilibrium.
假使两方面保持平衡，那么所有这些小的不规则的力对活塞的有效作用必须与重力相等。
The net effect on the piston of all these small irregular forces must be equal to that of the force of gravity if there is to be equilibrium.
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