Another one provides a communications link and the third is to provide ventilation.
另外一个钻孔用来提供通讯连接，第三个用以通风。
The link is through the Internet and the World Wide Web communications system.
它们通过互联网和万维网互相连接。
Space communication link is the key of satellite communications.
空间链道非齐部卫星通信网络的闭键。
Space communication link is the key of satellite communications.
空间链道非齐部卫星通信网络的闭键。
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