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.
针对以上问题设计了一种复锥面异形牙轮单牙轮钻头，为了研究设计的钻头结构是否合理、钻头的井底破岩效果、钻头的井底流场特性等问题，对试验钻头进行了一系列的分析。
To resolve the above problems we have designed a singular one-cone bit. We analyzed the bit to understand the mechanism, the result of breaking the rock, the characters of the fluid field.
研发出一流的破胶剂是一回事，但如何在实际中正确地进行应用却是另外一回事。
Developing state-of-the-art breaker chemistries is one thing, applying them correctly is another thing altogether.
现代地质学研究表明，雁荡山是一座具有世界意义的典型的白垩纪流纹质古火山——破火山。
Modern geology studies have shown that Hill is a world with a sense of typical Cretaceous rhyolitic ancient volcano - caldera.
清堵器具有结构简单、冲击力大、安全、节能、自动控制、操作简单、不损伤仓斗等基本优点，是目前最理想的破拱助流装置。
Air cannon has features that simple structure, huge impact, security, energy control, simple operation and non-damaging storehouse. It is the most ideal device to prevent bent and assist flow.
清堵器具有结构简单、冲击力大、安全、节能、自动控制、操作简单、不损伤仓斗等基本优点，是目前最理想的破拱助流装置。
Air cannon has features that simple structure, huge impact, security, energy control, simple operation and non-damaging storehouse. It is the most ideal device to prevent bent and assist flow.
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