伽利略从比萨斜塔上扔下不同重量的物体，并计算它们的下落时间。他要实现的不仅是他的勃勃雄心。
Galileo was not merely ambitious when he dropped objects of varying weights from the Leaning Tower at Pisa and timed their fall to the ground.
随着晶体体积的增大，它的重量也相应增加，于是它将透过云层开始下落。
As it grows, it gets heavier. It starts falling through the cloud.
我给各位演示，下落途中，的确是没有重量的，这有个壶。
And I'm going to tell you how I can convince you that as I jump, that I will, indeed, be weightless Here is the bottle.
放松(全身)，手臂重量(自由下落)，避免无意识的重复训练都是肖邦教学中的关键元素。
Relaxation (involving the whole body), arm weight (gravity drop), and avoidance of mindless repetitive exercises were key elements in Chopin's teachings.
这时螺母没有托住丝杆以及整个刀架部件的重量，由于摩擦阻力的作用而不下落。
Then screw nut did not try to jack up the entire turret components and the weight, the role without friction whereabouts.
在没有空气的情况下，物体的速度只取决于下落的时间而不取决于物体的重量。
In the absence of air, the speed of the body depends only on the time of the fall, and does not depend on the body's weight.
在没有空气的情况下，物体的速度只取决于下落的时间而不取决于物体的重量。
In the absence of air, the speed of the body depends only on the time of the fall, and does not depend on the body's weight.
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