navigation lock
短語詞組
- 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 船閘通過能力
- navigation lock gate 船閘閥門
- navigation lock hydraulics 船閘水力學
- optimization of navigation lock 船閘優(yōu)化 返回 navigation lock