An algorithm of branch interchange for realizing of power distribution network optimum reconfiguration is given in this paper, which takes the safety restrain and practical restrain into account.
针对配电网络结构和运行特点，提出一种计及安全约束和实际运行约束的支路互换算法，以实现网络优化重构。
Concerned at the increase in accident fatalities, Tennessee adopted a child-passenger protection law requiring that parents restrain children under four years of age in a child safety seat.
田纳西州因为担心车祸死亡率上升，颁布了儿童乘客保护法，要求父母乘车时把四岁以下的孩子限定在儿童安全座上。
The dredging of the water sump in the underground mine is always done with the primitive manual operation for many years which would seriously influence and restrain the mine safety and production.
煤矿井下水仓清淤多年来一直采用原始的人工作业方式来完成，严重影响和制约着矿井的安全与生产。
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