本文在分析起升机构制动过程的基础上，推导出起升机构下降制动时间和制动下滑距离的计算公式。
In this paper the calculating formulas of drop braking time and braking slipping distance of hoisting mechanism are deduced on the basis of analysing the braking process of hoisting mechanism.
太阳一升起，这儿一切看上去就大不相同了——所有的色彩和阴影都变了——因此一时间她们并没有看出那件大事。
The rising of the sun had made everything look so different - all colours and shadows were changed that for a moment they didn't see the important thing. Then they did.
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