piston stroke

基本解释

Reciprocating pump flow and pressure head has nothing to do with the pump cylinder size, and the reciprocating frequency of the piston stroke.
往复泵的流量与压头无关，与泵缸尺寸、活塞冲程及往复次数有关。
This paper by use of perturbation method found asymptotic periodic solution of piston stroke, and found rational periodic for periodic external force.
本文用摄动方法求得了活塞行程的渐近周期解，且为周期性外力求出合理的周期。
Therefore, the design method of double elbow clamping mechanism and piston stroke is proposed, which is in favour of working steady and reliability of injection moulding machine.
进而提出利于注塑机工作平稳的双肘锁模机构和活塞行程的设计方法。

EcoMotors and Achates are developing two-stroke, opposed piston diesel engines while Pinnacle is working on a four-stroke opposed piston gasoline engine.
FORBES: Engine Startup EcoMotors Signs Deal with Chinese Manufacturer
Conventional four-stroke engines produce power by moving a piston up and down using rapid explosions of fuel and air in a cylindrical chamber.
FORBES: How to get 51mpg from an engine the size of a large turkey.