我反对不先试一下闸就骑机动脚踏两用车。
I would advise against riding moped without testing the brakes first.
三峡工程—临时船闸上闸首、下闸首船闸液压系统总成。
Three Gorges Project-Upper and lower lock heads for the temporary ship lock Ship lock hydraulic system assembly.
龙滩水库在下闸蓄水开始阶段，坝下断流，对下游供水有一定的影响。
In the initial impoundment of Longtan Reservoir, it has certain influences to the downstream water supply since there is no runoff below the dam.
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