... control valve (CV) 控制阀 controlled area 管制地区 conventional shaft sinking 传统直井开凿 ...
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针对空中交通进近管制地区日益繁忙的交通流量，设计了一种进近排序及优化调度方案。
Sequencing and optimal scheduling method was developed for approach control of air traffic to handle increasing traffic volumes.
显然，该地区有一些低空云层，但主要是飞行员和空中交通管制员之间的沟通失误。
Apparently, there were some low clouds in the area, but mostly it was just miscommunication between the pilots and the air traffic controllers.
廉价航空公司控制着美欧五分之一的航空市场，同时由于航空业普遍解除管制，它们正迅速在中国和东南亚地区扩张。
Discount carriers control a fifth of the market in the us and Europe and are expanding quickly in China and south-east Asia amid industry-wide deregulation.
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