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字词 杠杆
释义 杠杆gànggǎn
1.简单机械,是一个能绕着固定点转动的杆。绕着转动的固定点叫支点,动力的作用点叫动力点,阻力的作用点叫阻力点。改变三点的两段距离的比率,可以改变力的大小。如剪刀(支点在中间)、铡刀(阻力点在中间)、镊子(动力点在中间)等就属于这一类。{lever; bar that can turn around on a fixed point that is used to exert pressure or to sustain weight at one point of its length by the application of force at a second point, and turning it at a third point on a fulcrum that is fixed in one of three positions:
between the load and effort, such as in the scissors; with the load between fulcrum and effort, such as in a hand hay cutter; and with the effort applied between load and fulcrum, such as in a pair of tongs}

2.〈比喻fig.起平衡或调控作用的事物或力量{inducing or compelling force}:
经济{economic levers}|发挥金融机构在经济发展中的作用。{give play to the role of financial institutions as levers in economic development}
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更新时间:2025/4/13 14:28:18