当射流速度比较大时,喷管的缺陷如进口出口的毛刺和流道壁的粗糙度是诱发湍流使射流破断的主要原因。
The turbulence induced by the defects of nozzle, such as the burr at the inlet and outlet, and the roughness of the wall, is the main cause to decrease the length of intact jet.
那家一流的餐馆不会让你进去的,因为你的破衣服。
The elegant restaurant wouldn't let you in because of your tatters.
两天之后,他们倒在地上肚破肠流…声嘶力竭的叫医护兵。
Two days later, there they are... with their guts hanging out and they're screaming for a medic.
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