短語(yǔ)詞組短語(yǔ)Xiaojia navigation lock 肖家船閘Sanhe navigation lock 三河船閘permanent navigation lock 永久船閘navigation lock disposal 船閘布置navigation lock scale 船閘規(guī)模navigation lock capacity 船閘通過(guò)能力navigation lock gate 船閘閥門navigation lock hydraulics 船閘水力學(xué)optimization of navigation lock 船閘優(yōu)化 返回 navigation lock