I would advise against riding the moped without testing the brakes first.
我反对不先试一下闸就骑机器脚踏两用车。
downbound entry
下行(水)进闸时间
downbound exit
下行(水)出闸时间
Study on Regulation and Analysis of Sediment Siltation Downstream Tidal Barriers in Sheyang Estuary;
射阳河口挡潮闸闸下淤积分析与治理开发研究
Hepressed the switch and all the lights flashed on together.
他扳下电闸,所有的灯一下子全亮了。
Shut off the lower pipe ram, open the choke line and test the next ram and choke line.
关下部钻杆闸板，开放喷阀，试压第二个闸板和放喷泉管线。
The Comprehensive Management Plan of the BeiYun River from under Yang Wa Sluice to TuMenLou Sluice
北运河杨洼闸下至土门楼闸河段综合治理规划研究
Thicker knife. Our valves have thicker, stronger knives, to prevent deflection under heavy pressure and to ensure a tight seal.
更厚的闸刀。我们的阀门具有更厚、坚固的闸刀，能够避免闸刀在高压下产生偏转，确保紧密密封。
There was a squeal of brakes as the car suddenly stopped.
小汽车突然停下来时，车闸发出尖叫声。
The shack said: " Hit the grit, you son of a toad."
司闸员说：“从货车上跳下去，你这个混蛋。”
He dropped the reins and heaved on the brake.
他放下缰绳，猛地拉住车闸。
As soon as the sluice gate was opened, the water surged in.
水闸门一开，水便一下子涌了出来。
Remove the liftglass latch from the liftgate.
从升降闸门上拆下升降窗。
The driver jammed on the brakes but failed to stop in time.
司机刹了闸,但没能及时停下来。
The safety gates at the railroad crossing are lowering.
铁路交叉路口的安全闸正在放下来。
The third is a vertical sliding gate.
第三道，就是从上面放下来的闸门。
Dynamic Characteristics Analysis of Miter Gate under Ship Collisions;
船舶撞击下人字闸门的动力反应分析
He pressed the switch and all the lights on the switch and all the lights on the threshing ground flashed on together.
他扳下电闸，打谷场上的灯一下子全亮了。