安全车距;安全间隔
This paper analyzes train headway in urban rail transport system, and puts forward three factors affecting train headway including safe spacing, cutoff interval and traffic flow.
通过对城市轨道交通系统中列车间隔的分析,提出了影响列车间隔的3大因素:安全间距,车站停留时间和运行裕量。
The use method, the pesticidal effect and the safe interval of some pesticides, including contacting killing type, systematic type, stomach toxic type and fumigant type, were brought forward on the base of the characteristic and the acting manner of some common chemical pesticide.
根据常用几种化学杀虫剂的特性、作用方式,研究了触杀型、内吸型、胃毒型、熏蒸型杀虫剂的使用方法、灭虫效果及安全间隔期。
research to the satisfying blood donating volume and safe interval
无偿献血的限量及安全间隔期的研究
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