Performers have to jump up to the sky, with one hand carrying the drum and the other hand beating, which inspires and encourages people.

演员一手托鼓腾空而起，另一手同时在空中击鼓，给人以振奋和激励。

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Moreover, according to the Newton's Third Law, the snare drum and my hand are action and reaction pair. Hence, a force which is equal in magnitude but opposite in direction would act on me.

而根据牛顿第三定律，鼓皮会施予鼓棍一个方向相反但数值相等的力，并传到我的手中！

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A stationary motor-driven or hand-powered hoisting machine having a drum around which is wound a rope or chain attached to the load being lifted.

绞车，起货机一种装有卷筒的固定的电动机驱动或手动的吊升机械，卷筒周围缠绕着与提升的重物相连的绳索。

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The time it takes to check your hand remains a little longer than it would take you to drum in your typical four-digit PIN, but in our brief test, it was able to discriminate between two Engadget editors' hands.

ENGADGET: KDDI's smartphone palm authentication app unveiled at CEATEC 2012 (hands-on)