This paper analyses pollution reason and harm of supports hydraulic system, puts forward basic controlling methods.

分析支架液压系统的污染原因及危害，提出基本控制方法。

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Introduced the reason and harm of the false oil position in transformer and provided site correct oil injection method.

介绍变压器产生假油位的原因和危害，提出现场正确注油的方法。

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The third part introduced the production reason and harm of objective incapability of procedure of execution, namely analyzing question partly.

第三部分介绍了客观执行不能的产生原因及危害，也系分析问题的组成部分。

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The trust said at the time it had not found any problems with Stewart's work at surgeries in Chatham and Gillingham and there was no reason to believe there had been any harm to anyone's health.

BBC: Bogus Medway practice nurse admits fraud

That is the very reason why the Justice Department argued that speed was crucial if further competitive harm to Microsoft's rivals and consumers was to be prevented.

ECONOMIST: Microsoft gets a break