英语词汇“to jack down”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

transitive. To lower (a thing) by means of a jack (Jack n.² 11).

ΘΚΠ

the world > movement > motion in a certain direction > downward motion > causing to come or go down > cause to come or go down [verb (transitive)] > lower or let down > by mechanical means

to turn down1551

parbuckle1768

to strike down1778

to hoist down1794

to jack down1893

to wind down1961

1893 Engin. Rec. 15 July 105/1 They [sc. the girders] are..then jacked down.

1915 Southwestern Reporter 177 1140/1 If they had jacks they jacked the wheel down.

1972 Bailey Bridge (U.S. Dept. Army Techn. Man. TM 5-277) Aug. v. 62/1 The number of jacks required to jack down a bridge depends on the span length and the type of the bridge.

1993 F. Conroy Body & Soul (1994) viii. 160 He put on the spare and jacked down the car.

2013 Orange County (Calif.) Reg. 25 June 3/1 Some tall buildings are dismantled..from the bottom up, the entire structure being slowly jacked down.

单词	to jack down
释义	> as lemmas to jack down to jack down transitive. To lower (a thing) by means of a jack (Jack n.² 11). ΘΚΠ the world > movement > motion in a certain direction > downward motion > causing to come or go down > cause to come or go down [verb (transitive)] > lower or let down > by mechanical means to turn down1551 parbuckle1768 to strike down1778 to hoist down1794 to jack down1893 to wind down1961 1893 Engin. Rec. 15 July 105/1 They [sc. the girders] are..then jacked down. 1915 Southwestern Reporter 177 1140/1 If they had jacks they jacked the wheel down. 1972 Bailey Bridge (U.S. Dept. Army Techn. Man. TM 5-277) Aug. v. 62/1 The number of jacks required to jack down a bridge depends on the span length and the type of the bridge. 1993 F. Conroy Body & Soul (1994) viii. 160 He put on the spare and jacked down the car. 2013 Orange County (Calif.) Reg. 25 June 3/1 Some tall buildings are dismantled..from the bottom up, the entire structure being slowly jacked down. extracted from jackv.² < as lemmas
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> as lemmas