The top edge of the shield projects for a short distance in order to protect the workers.
盾构的上缘向前突出一段距离以保护施工的工人。
In order to achieve a rapid initiation of detonation in a short distance, a flame jet ignition system was applied to the pulse detonation rocket engine (PDRE).
为了实现快速短距起爆,火焰射流点火系统被尝试应用在脉冲爆震火箭发动机上。
In order to adapt to the characteristics of short on parking, must make the train start fast, short braking distance.
为了适应短距离起停车的特点,必须使列车启动快、制动距离短。
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