piston 的定义
- a disk or cylindrical part tightly fitting and moving within a cylinder, either to compress or move a fluid collected in the cylinder, as air or water, or to transform energy imparted by a fluid entering or expanding inside the cylinder, as compressed air, explosive gases, or steam, into a rectilinear motion usually transformed into rotary motion by means of a connecting rod.
- a pumplike valve used to change the pitch in a cornet or the like.
piston 近义词
等同于 motor
等同于 engine
更多piston例句
- Froghoppers produce suction power with a pumplike structure in their heads, where muscles pull on a membrane to generate negative pressures, akin to a piston.
- A steam engine is a device that transforms energy of one sort into energy of a different sort, and it can perform useful tasks, such as moving a piston, without ever violating that principle of conservation of energy.
- It is a very simple plan, and will be perfectly tight; it is by restoring an equilibrium on both sides of the piston.
- The water-piston is 10 inches in diameter, drawing and forcing 35 feet perpendicular, equal beam.
- When she had finished her up-stroke the steam passed from under the pole on to the top of the piston in the cylinder.
- Then he came down from London and found that the piston of his engine was half an inch smaller in diameter than the cylinder.
- The steam in ordinary working was shut off when the piston had moved from an eighth to a quarter of its stroke.