flapping hinge[航] 挥舞铰链;挥舞铰;翼动铰
flapping flight扑翼飞行;扑翔
flapping sound拍击音;翻译
Interface flapping接口翻动
flapping track挥舞参数
flapping frequency挥舞频率;扑动频率
flapping rotor挥舞铰接式旋翼
But it also has some asset problems, such as fluctuating pressure in the back of gate, continually swinging, flapping , the flood carrying is complex and so on .
但是此门型仍存在一些值得关注的问题，如闸后空腔脉动负压、闸门运行的频繁摆动、“拍打”、闸门泄流的水力现象复杂等。
参考来源 - 水力自动翻板闸门脉动压力对闸门结构及泄流量的影响分析研究V-T/V-I（及物动词/不及物动词） If something such as a piece of cloth or paper flaps or if you flap it, it moves quickly up and down or from side to side. 使快速摆动; 快速摆动
Grey sheets flapped on the clothes line.
灰色的床单在晾衣绳上飘动。
V-T/V-I（及物动词/不及物动词） If a bird or insect flaps its wings or if its wings flap, the wings move quickly up and down. 快速振动 (翅膀)
The bird flapped its wings furiously.
那只鸟儿使劲地拍打着翅膀。
V-T（及物动词） If you flap your arms, you move them quickly up and down as if they were the wings of a bird. (双臂像小鸟般) 扇动
...a kid running and flapping her arms.
…一个边跑边像小鸟一样上下扇动着双臂的小女孩。
N-COUNT（可数名词） A flap of cloth or skin, for example, is a flat piece of it that can move freely up and down or from side to side because it is held or attached by only one edge. (一端固定、可自由掀动的布或皮的) 垂悬平片
He drew back the tent flap and strode out into the blizzard.
他拉开帐篷的门帘，大步走进了暴风雪中。
N-COUNT（可数名词） A flap on the wing of an aircraft is an area along the edge of the wing that can be raised or lowered to control the movement of the aircraft. (飞机的) 副翼
...the sudden slowing as the flaps were lowered.
…副翼降下时的突然减速。