Featuring a spring piston firing mechanism, the sniper rifle is almost silent when fired.
采用弹簧活塞式发射装置，狙击步枪射击时几乎无声。
The final step came when steam was introduced into the cylinder to drive the piston backward as well as forward, thereby increasing the speed of the engine and cutting its fuel consumption.
最后一步是将蒸汽引入气缸，使得活塞前后推动，从而提高了发动机的速度，降低了燃料消耗。
The piston moves by steam pressure.
活塞在蒸汽压力下运动。
We've got my container, my piston here.
这里是容器和活塞。
The piston is reciprocating inside cylinder.
活塞在汽缸内部往复运动。
This piston should be properly centered.
这个活塞应很好的对中。
This means longer rod and piston seal life.
这意味着不再杆和活塞密封寿命。
Filling the cylinder with steam pushes the piston out.
填充汽缸的蒸汽将活塞推出。
Check piston diameter on oil piston shank with micrometer gauge.
使用千分尺在机油活塞体上检查活塞直径。
Dye-penetrant testing of the disc trunnions and piston rod heads.
对阀盘、耳轴活塞杆头的染料渗透剂测试。
So initially, we're going to have our piston, there's the plug sitting here.
所以一开始，这是个活塞，这里是个节流阀。
At present, digital variable displacement axial piston pump has some problems.
目前，数字变量轴向柱塞泵还存在着很多问题。
And so we know the force for a particular mass, and we know the area of the piston.
我们知道每个质量对应的力，也知道活塞的面积。
Each piston disassembled and polished, each nut and washer cleaned or replaced, accounted for.
每个活塞都要拆下来并且打磨，每个螺母和垫圈都要清洗或更换，并且一个都不能少。
This mixture passes into the cylinder, where it is exploded and exerts force on the piston.
这种混合物进入汽缸，在那里发生爆炸，从而对活塞施加力。
My earliest memories are of pointing to the sky, having detected the far-off drone of a piston engine.
我能回忆起的最早的事情就是指着天空，耳边传来远处的活塞引擎的轰鸣声。
Spring opposed , air operated diaphragm or piston, actuators are preferred for on-off applications.
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。
The core of a steam engine is a cylinder that is sealed at one end and has a moving piston at the other.
蒸汽机的核心是汽缸。它一端密封，另一端有个可以移动的活塞。
The complete cycle of an engine requires four piston strokes: intake, compression power, and exhaust.
发动机完整的循环要求有活塞的四个冲程：进气、压缩、做功、排气。
So I've got, this piston here is compressed, and I slowly, slowly increase the volume, drop the temperature.
这样，这个活塞就被压缩了，然后我再很慢很慢地增加它的体积，降低温度。
We have a weight on the piston, and that weight is chosen so that p2 it acts as though p external is equal to p2.
让活塞上放一重物，让它的效果刚好,等同于外压强。
A two-stroke engine has no moving valves, and the spark plug fires each time the piston hits the top of its cycle.
二冲程发动机没有移动的阀，火花塞每次点火活塞到达循环顶端。
Carrier later switched from piston power to the centrifugal chiller, which allowed much larger Spaces to be cooled.
Carrier后来把活塞动力改为离心式制冷机，可以冷却更大空间。
The trapped air in the diaphragm will force the diaphragm between the inside of the sleeve and the outside of the piston.
罩在隔膜内的空气将施加力量在隔膜上，使其进入套筒内部和活塞外部之间。
The work principle and structures of backpressure piston rings and integral non-backpressure piston rings were expounded.
分别对开口有背压活塞环和整体无背压活塞环的工作原理和结构作了阐述。
The design of integral non-backpressure piston rings was studied in order to reduce wear and to raise the piston ring life.
为了减少磨损，提高活塞环的使用寿命，对整体无背压活塞环的设计进行了研究。
The design of integral non-backpressure piston rings was studied in order to reduce wear and to raise the piston ring life.
为了减少磨损，提高活塞环的使用寿命，对整体无背压活塞环的设计进行了研究。
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