Constructive solutions in the design of the walkways contribute to facilitate the evacuation of rainwater, one of the most harmful agents to wood in outdoor use.
在设计上人行道的建设性解决方案主要有助于促进雨水的疏散，雨水是在室外使用上损伤木材的最大因素之一。
The medical succor for hijack terror includes treatment and transportation of the wounded, sanitation for epidemic prevention, protection from harmful agents, and medical health care.
劫持恐怖医疗救援的主要内容包括：伤病员的医疗救治和后送、卫生防疫、卫生防护、医疗保健等。
Chemical. Poisoning or injury caused by chemical substances, including ex-military chemical warfare agents or legitimate but harmful household or industrial chemicals.
由于化学物质造成的中毒或伤害，这些化学物质包括以前的军用化学战剂或合法但有害的家用或工业化学品。
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