英语词汇“half-centre”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

half-centre n. Engineering (now rare) (in a reciprocating engine) either of the two points at which the crankpin is midway between the two dead centres, where the turning effect of the connecting rod is greatest; the position of the piston when the crankpin is at either of these points.

1853 Appletons' Mechanics' Mag. & Engineers' Jrnl. Sept. 206/2 The steam drives both cylinders down with a constant decreasing pressure, until..the starboard piston is at the end of its stroke, and its companion at half centre.

1903 M. P. Bale Gas & Oil Engine Managem. ii. 27 The flywheel being turned till the engine is in a position to start..when the crank is just above half-centre.

1922 M. H. Gornston Operating Engineer's Catech. Steam Engin. 223 The crankpin should then be brought into contact with the line at the lower half-center.

half-centre n. (see quot. half-centre n.).

ΚΠ

1888 Lockwood's Dict. Mech. Engin. Half-centre, half-centre is sometimes used to denote the position of the crank-pin of an engine when midway between the two dead centres or dead points.

单词	half-centre
释义	> as lemmas half-centre half-centre n. Engineering (now rare) (in a reciprocating engine) either of the two points at which the crankpin is midway between the two dead centres, where the turning effect of the connecting rod is greatest; the position of the piston when the crankpin is at either of these points. Π 1853 Appletons' Mechanics' Mag. & Engineers' Jrnl. Sept. 206/2 The steam drives both cylinders down with a constant decreasing pressure, until..the starboard piston is at the end of its stroke, and its companion at half centre. 1903 M. P. Bale Gas & Oil Engine Managem. ii. 27 The flywheel being turned till the engine is in a position to start..when the crank is just above half-centre. 1922 M. H. Gornston Operating Engineer's Catech. Steam Engin. 223 The crankpin should then be brought into contact with the line at the lower half-center. extracted from halfadj. half-centre half-centre n. (see quot. half-centre n.). ΚΠ 1888 Lockwood's Dict. Mech. Engin. Half-centre, half-centre is sometimes used to denote the position of the crank-pin of an engine when midway between the two dead centres or dead points. extracted from half-comb. form < as lemmas
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> as lemmas