翻訳と辞書
Words near each other
・ pistillate
・ pistillation
・ pistillidium
・ pistilliferous
・ pistillody
・ pistol
・ pistolade
・ pistole
・ pistoleer
・ pistolet
piston
・ piston ring
・ pit
・ pit-hole
・ pita
・ pitahaya
・ pitapat
・ pitch
・ pitch-black
・ pitch-dark


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piston : 英英辞書
Pis"ton
(), n.[F. piston; cf. It. pistone piston, also pestone a large pestle; all fr. L. pinsere, pistum, to pound, to stamp. See Pestle, Pistil.] (Mach.) A sliding piece which either is moved by, or moves against, fluid pressure. It usually consists of a short cylinder fitting within a cylindrical vessel along which it moves, back and forth. It is used in steam engines to receive motion from the steam, and in pumps to transmit motion to a fluid; also for other purposes.
Piston head (Steam Eng.), that part of a piston which is made fast to the piston rod.
Piston rod, a rod by which a piston is moved, or by which it communicates motion.
Piston valve (Steam Eng.), a slide valve, consisting of a piston, or connected pistons, working in a cylindrical case which is provided with ports that are traversed by the valve.



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