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piston    音标拼音: [p'ɪstən]
n. 活塞,瓣

活塞,瓣

Piston
n 1: United States neoclassical composer (1894-1976) [synonym:
{Piston}, {Walter Piston}]
2: mechanical device that has a plunging or thrusting motion
[synonym: {piston}, {plunger}]

Piston \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.
[1913 Webster]

{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.
[1913 Webster]


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  • Piston - Wikipedia
    The main piston has a large piston rod extending downwards from the piston to what is effectively a second smaller-diameter piston The main piston is responsible for gas sealing and carries the piston rings
  • Piston – Minecraft Wiki
    A piston is a block capable of pushing entities and most blocks when given a redstone signal A sticky piston is a variant of the piston that can additonally pull most blocks when it retracts
  • What is a Piston?- Definition, Parts, and Types
    A piston is a component of reciprocating engines, reciprocating pumps, gas compressors, hydraulic cylinders, and pneumatic cylinders, among other similar mechanisms It is the moving component that is enclosed in a cylinder and made gas-tight by piston rings
  • Detroit Pistons Scores, Stats and Highlights - ESPN
    Visit ESPN for Detroit Pistons live scores, video highlights, and latest news Find standings and the full 2026-27 season schedule
  • Piston and cylinder | Engineering, Mechanics Applications | Britannica
    Piston and cylinder, in mechanical engineering, sliding cylinder with a closed head (the piston) that is moved reciprocally in a slightly larger cylindrical chamber (the cylinder) by or against pressure of a fluid, as in an engine or pump
  • Pistons: How they Work and Why They Matter - Mechanical Education
    What is a Piston? A piston is basically a cylindrical component that moves up and down inside an engine cylinder It helps convert pressure into energy by pushing against gas or liquid molecules in order to create motion
  • PISTON Definition Meaning - Merriam-Webster
    The meaning of PISTON is a sliding piece moved by or moving against fluid pressure which usually consists of a short cylindrical body fitting within a cylindrical chamber or vessel along which it moves back and forth
  • What Is a Piston?- Functions, Parts, Materials, and Types
    What is a Piston? The piston is found in reciprocating engines, reciprocating pumps, gas compressors, hydraulic cylinders and pneumatic cylinders It is the moving element contained by a cylinder, and sealed by piston rings
  • Piston – Minecraft Wiki
    The piston makes a sound that can be heard within a 31×31×31 cube centered on the activating piston Any entities in the path of an extending piston (or any block it might be moving) are pushed along, when possible
  • What Is A Piston? How Does It Work? - Science ABC
    A piston is defined as a cylindrical component that performs reciprocating or back-and-forth motion in a pressure-tight tube The purpose of this arrangement is to pressurize fluids (both liquids and gases) contained within the cylinder to either impart or derive motion





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