该文从炸药的感度、电感应引起早爆、爆炸产生的有害气体等三个方面，分析了爆破过程中的主要不安全因素。
The paper analyzes the major dangerous factors in the exploding process according to the sensitivity of explosive, electricity induced early burst and the harmful gas produced in explosion.
注射引起的疼痛是其常见的不良反应，增加患者的痛苦和术后不良回忆，因而影响麻醉的平稳，增加了不安全因素。
However, the injection pain as its common adverse reactions can increase the patients' pain and bad postoperative memories, thus affecting smooth anesthesia and increasing factors of insecurity.
阀门装有箱体专用锁，便于集中管理，可避免因误操作造成的能源浪费和泄漏引起 不安全因素。
Valve fitted with special lock box, for centralized management, can avoid the misuse and waste of energy leakage caused insecurity.
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