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

c. Physics. The physical result of the action of a force, esp. as a measurable quantity; the energy expended in such action (now called work: see work n. 10). Frequently in mechanical effect. Now historical.In quot. 1812, the work done in a given time (cf. power n.¹ 16a). useful effect n. the net result of the operation of a force or set of forces, after making deductions for loss from friction, etc.

ΘΚΠ

the world > matter > physics > energy or power of doing work > [noun] > effective operation of energy or force > amount done in a given time

effect1760

1760 Philos. Trans. 1759 (Royal Soc.) 51 137 Tho' here is the exertion of gravity upon a given quantity of water, yet being prevented by a counterbalance from moving, is capable of producing no mechanical effect, according to our definition.

1784 G. Atwood Treat. Rectilinear Motion & Rotation Bodies 265 The same mechanical effect is therefore produced by an inconsiderable, as by a very great velocity, compensation being made for the diminished velocity by increasing the mass of matter moved.

1812 J. Playfair Outl. Nat. Philos. I. 106 The effect of animal force, then, or the quantity of work done in a given time, will be proportional.

1828 J. M. Spearman Brit. Gunner 262 His [sc. a cart-horse] useful effect..may be expressed by 8150lbs. carried one mile daily.

1834 Philos. Trans. (Royal Soc.) 124 309 The application of the power of steam, in order that the greatest possible useful effect may be produced with a given quantity of coals.

1849 Trans. Royal Soc. Edinb. 16 545 A perfect thermodynamic engine..is a machine by means of which the greatest possible amount of mechanical effect can be obtained from a given thermal agency.

1871 B. Stewart Heat (ed. 2) §389 An agent for generating mechanical effect.

1920 Proc. Royal Soc. A. 97 109 The choice of the position of the striking-point actually adopted in the pianoforte is no doubt determined by its influence on the useful effect produced by the impact of the hammer.

1990 C. Smith in R. C. Olby et al. Compan. Hist. Mod. Sci. xxi. 330 Throughout these discussions, the production of mechanical effect and its efficient use formed the central theme.

单词	mechanical effect
释义	> as lemmas mechanical effect c. Physics. The physical result of the action of a force, esp. as a measurable quantity; the energy expended in such action (now called work: see work n. 10). Frequently in mechanical effect. Now historical.In quot. 1812, the work done in a given time (cf. power n.¹ 16a). useful effect n. the net result of the operation of a force or set of forces, after making deductions for loss from friction, etc. ΘΚΠ the world > matter > physics > energy or power of doing work > [noun] > effective operation of energy or force > amount done in a given time effect1760 1760 Philos. Trans. 1759 (Royal Soc.) 51 137 Tho' here is the exertion of gravity upon a given quantity of water, yet being prevented by a counterbalance from moving, is capable of producing no mechanical effect, according to our definition. 1784 G. Atwood Treat. Rectilinear Motion & Rotation Bodies 265 The same mechanical effect is therefore produced by an inconsiderable, as by a very great velocity, compensation being made for the diminished velocity by increasing the mass of matter moved. 1812 J. Playfair Outl. Nat. Philos. I. 106 The effect of animal force, then, or the quantity of work done in a given time, will be proportional. 1828 J. M. Spearman Brit. Gunner 262 His [sc. a cart-horse] useful effect..may be expressed by 8150lbs. carried one mile daily. 1834 Philos. Trans. (Royal Soc.) 124 309 The application of the power of steam, in order that the greatest possible useful effect may be produced with a given quantity of coals. 1849 Trans. Royal Soc. Edinb. 16 545 A perfect thermodynamic engine..is a machine by means of which the greatest possible amount of mechanical effect can be obtained from a given thermal agency. 1871 B. Stewart Heat (ed. 2) §389 An agent for generating mechanical effect. 1920 Proc. Royal Soc. A. 97 109 The choice of the position of the striking-point actually adopted in the pianoforte is no doubt determined by its influence on the useful effect produced by the impact of the hammer. 1990 C. Smith in R. C. Olby et al. Compan. Hist. Mod. Sci. xxi. 330 Throughout these discussions, the production of mechanical effect and its efficient use formed the central theme. extracted from effectn. < as lemmas
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