Some companies prefer to store cut parts in the tower. The system controller knows exactly where those parts are, and parts can be pulled as downstream processes need them.

有些公司倾向于把切割好的零件存在料塔里，系统控制员能够精确地知道零部件在哪里，也能在在后续工序需要的时候方便地调用。

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Landing: the pilot receives landing clearance from the Local Controller in the airport's control tower to landing on a designated runway.

落地：飞行员从机场塔台的进场管制员处得到落地许可，操作飞机降落在预订跑道上。

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Using discrete components circuit towers to achieve the level of automation, design a cost-end, high practical value of the water tower water level controller.

采用分立元件电路实现了水塔水位的自动控制，设计出一种低成本、高实用价值的水塔水位控制器。

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Each tower must be networked and linked to a master controller or switch in order that all towers can talk to each other.

FORBES: Connect

But the contract tower closings will contribute to the workload at other FAA facilities, which simultaneously will be coping with controller furloughs.

CNN: FAA says 173 air traffic control towers will close on April 7