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.
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。
2
Traditional seismic data processing is on the basis of hyperbolic time-distance theory.
常规地震资料处理方法是建立在双曲时距理论基础之上的。
3
The trapping was carried on at different points of time at night and the insect was investigated on the basis of the distance of the light source from the grain heap.