地块北缘的古生代深水沉积带，也延展到越南东北沿海地区。
The palaeozoic deep water sedimentary belt along the northern margin of the Yunkai Block also extends to the northeastern coast area of Vietnam.
地块北缘的古生代深水沉积带，也延展到越南东北沿海地区。
The palaeozoic deep water sedimentary belt along the northern margin of the Yunkai Block also extends to the northeastern coast area of Vietnam.
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