Have you ever experienced you were uncomfortable when you had to check air flow with a smoke tube where ventilation fan or hood was unreachable or was located at confined space?

你经历过你不舒服，你必须检查它配备了烟管流动凡通风风扇罩无法访问或曾在密闭空间在哪里？

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The gas producing speed of super lower permeability Anthracite seams is mainly confined by gas flow in the fractures.

指出低渗透无烟煤煤层气产气速率主要受裂隙中气体流动的限制。

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This paper analyzed the problem of disturbing and controlling based on project flow by description of flow changing modelling through dynamic right confined by UML.

本文分析了基于项目流的分解与控制问题，借助U ML对在动态权限限定下的流程进行模型化描述。

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It tends to be a one-way flow of communication From the faculty to the students. It highly confined Students have limited opportunities to ask questions.

那是从教授到学生,单向的信息流动,这种模式限制了学生提问的机会。

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