活塞

• A molecule striking an advancing piston recoils with increased speed .
  撞在前进中的活塞上的分子，会加速反跳。
• The automatic choke includes a thermostatic spring and a vacuum piston .
  自动阻风门包括一个恒温控制弹簧和一个真空活塞。
• A spring holds the other ends in contact with the piston of a hydraulic cylinder .
  另一端由一个弹簧托住，与液压缸的活塞相接。
• The piston end of the rod is attached to the piston by the piston pin, or wrist pin .
  连杆的活塞端用活塞销或销轴安装在活塞上。
• When the exhaust stroke starts, the cylinder is swept out by the upmoving piston .
  当排气冲程开始时，气缸被向上运动着的活塞刮掠。
• All but plug and backmix require rather sophisticated mathematical analysis .
  除了活塞流与逆混流之外，其它都需要比较深的数学分析。
• All investigators in mass transfer assumed plug flow of gas in packed beds .
  所有传递问题的研究者都假定在填充床层中的气体为活塞流。
• The piston is now forced down, the burned gases expanding approximately adiabatically .
  这时点燃的气体作近似的绝热膨胀而向下推动活塞。
• In the round piston vv carburetor, the piston is moved by intake-manifold vacuum .
  在圆形活塞的VV化油器中，活塞是由进气歧管真空移动的。
• The piston is forced upward until sufficient port area is available to pass the fluid .
  活塞被推动向上，直到有足够的通道面积让流体流过。