piston
举一反三
- piston
- The piston is fitted with _____piston rings. A: four B: three C: two D: one
- The lower end of each piston rod is reduced in diameter to fit a bore in (), this being secured to the piston rod by a nut.
- Which term describes piston pins having bearing surfaces in both the piston bosses and connecting rod eye?()
- The energy for pushing this piston up can be supplied from (), so that the piston can keep moving up and down.