Firstly, analyses classify and occurring rules of safety accidents of construction engineering in order to control happening of safety accidents more effectively.
首先分析了建设工程安全事故的概念、分类及其发生规律，从而能更有效地控制安全事故的发生。
According to practice in recent years, the author provides personal idea on occurring rules of major diseases of cucumber in greenhouse in Pingyao and preventing strategies.
笔者根据近年实践，提出了平遥温室黄瓜主要病害的发生规律及防治策略的几点看法。
On the base of the investigation, the paper studies the nature of those injuries and analyzes the causes of them in order to find out the occurring rules of these injuries and the preventing tactics.
文章在调查的基础上，对损伤的性质、原因进行了分析，旨在探讨长拳运动员损伤发生的规律及防治对策。
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