一控制电路，它根据光发射接收器的信号控制水泵。
The control circuit controls the pump according to the signal of the light emission receiver.
这些微型卫星体积小巧，能够容纳传感器和通信接收器、发射机，使操作人员能够从太空中研究地球以及地球周围的空间。
Within their compact bodies these minute satellites are able to house sensors and communications receivers/transmitters that enable operators to study Earth from space, as well as space around Earth.
他们在橡皮船上安装了雷达发射器、接收器和天线，在浮动冰架间运行的过程中接收有价值的数据。
They fit a radar transmitter, receiver and antennas to the kayaks, to obtain valuable data on the processes operating over floating ice shelves.
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