... 窄河槽 neck channel 主河槽 main channel; main river channel; major bed; major river bed 不稳定河槽（冲淤河槽） unstable channel ...
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TGP main river channel closure has such features as large discharge, deep water and high dumping intensity.
三峡工程大江截流，流量大、水深、抛填强度高。
Larger ships will be able to navigate the river after the main channel is deepened.
主要河床被挖深后，较大船舶将能航行于此河流。
24once the city's main water source, the Los Angeles River is now a concrete channel fed by storm drains.
曾经作为城市主要水源的洛杉矶河，现在是一条混凝土渠道，用于暴雨排水渠。
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