Devices that allow very large amounts of data to be sent down the narrow band channels of ISDN.
使用该设备可以将大量数据输入ISDN窄带信道。
Laser beams could be sent down fiber-optic cable to power anything currently powered by copper wire.
镭射光也可以通过地下光缆来传输能量,来代替铜线传输。
At least four rescue workers will be sent down into the mine during the process to provide assistance.
救援过程要派至少四名救援人员下到矿井,协助矿工升井。
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