... secondary signal bridge 备用信号桥楼 secondary signal 副信号 secondary source of pollution 次污染源 ...
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一艘美国大军舰，密密麻麻布满了100多副巨型铜质天线，为舰上武器、雷达及语音数据通信收发信号。
BIG American warship bristles with more than 100 large copper antennae that send and receive signals for its weapons, its radar and its voice and data communications.
一艘美国大军舰，密密麻麻布满了100多副巨型铜质天线，为舰上武器、雷达及语音数据通信收发信号。
A BIG American warship bristles with more than 100 large copper antennae that send and receive signals for its weapons, its radar and its voice and data communications.
色同步信号是为了在接收端恢复与发送端被抑制掉的色副载波同频同相的载波而设置的。
Color synchronous signal is setup to resume subcarrier color signal as same frequency and phase in receive end, which is suppressed in send end.
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