Pistons

例句:

• Among these, are siphon pumps, the force pump of Ctesibius, a fire-pump, having two cylinders, and two pistons, valves, and levers. 威廉·亨利·杜利特. 世纪发明.
• These cylinders move over stationary pistons which have orifices that allow the liquid to pass from one side of the piston to the other. Edward W. Byrn. 十九世纪发明进展.
• In this the pistons consisted of two cog wheels, their leaves intermeshing, and rotated in an elliptical shaped chamber. 威廉·亨利·杜利特. 世纪发明.
• It was also found desirable to employ two engines instead of one, the pistons being made to rise and descend alternately. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• When the gun is fired, the recoil causes it to slide back, carrying the pistons, and the recoil is checked by the resistance of the glycerine traveling through an opening past the pistons. Edward W. Byrn. 十九世纪发明进展.
• The cylinders and pistons were enclosed within the fire box in the rear. Edward W. Byrn. 十九世纪发明进展.
• Within are pistons, so connected that those in the lower and upper cylinders move together. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• The consequent friction increased the loss of power, and the difficulty of lubricating the pistons added to the practical objections to the air engine. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.

整理:伊冯