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back channel 〔美國〕秘密渠道,非正規途徑。

back end

The single chip system is constructed which can control the double pendulum , including forward channel , back channel and communication with computer 這個單片機系統包括前項通道、后項通道、和上位機通訊三部分。

He was a good and trusted back channel , and he kept his boss well informed 他是一個有用的而且可靠的小道消息來源,確保了他的上司消息靈通。

Has made back channel overtures toward them to join their group . . .主動通過秘密渠道向他們提出要他們入伙