A heavy object, like a football player moving at a high speed, has a lot of momentum—that is, once he is moving, it is hard to change his state of motion.
一个重物有很大的动量，也就是说，比如一位高速移动的足球运动员一旦运动起来，就很难改变运动状态。
She wondered if perhaps the bird was actually a giant kite, and the men were using it to lift a heavy object.
她想知道，那只鸟是否真的是一只巨大的风筝，而那些人是否正用它来举很重的东西。
Before you lift a heavy object, think through your task.
在你移动一件重物之前，想想你整个任务过程。
Notice that WebResource is a heavy object, so you create it once.
注意WebResource是一个大对象，因此只创建一次。
Have you ever tried to pull a rabbit out of a hat or make a heavy object levitate?
您曾试过从帽子里变出一只兔子，或是让重物飘浮在空中吗？
When transfer heavy object to a lower level, mine hoist usually USES the way of power braking.
矿井提升机下放重物时，多采用动力制动方式。
For example, lifting a heavy object, twisting while lifting, falling, or some sports could cause lumbar muscle strain.
比如，举一个沉重的物体，当举重物时扭腰，摔倒，或一些运动可引起腰部肌肉扭伤。
No, but you have sprained your lumbar muscles. This is because you overstrained or the position of your body was improper when you carried the heavy object.
不，只是你扭伤了腰肌。这是因为当你搬运重物时过度用力或身体姿势不当引起的。
The top three causes of the accidental injury are: road accident injury (43.4%), drifting-down injury (31.7%) and the bruise injury caused by heavy object (12.8%).
造成意外伤害的原因前三位是交通伤(43.4%)、跌落伤(31.7%)、重物砸伤(12.8%)。
The top three causes of the accidental injury are: road accident injury (43.4%), drifting-down injury (31.7%) and the bruise injury caused by heavy object (12.8%).
造成意外伤害的原因前三位是交通伤(43.4%)、跌落伤(31.7%)、重物砸伤(12.8%)。
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