chemical attack 在战争中，用化学武器进行的攻击。 杀伤性化学袭击(antipersonnel chemical attack)指以杀伤对方有生力量为主要目的的化学袭击。 迟滞性化学袭击(delaying chemical attack)指以迫使对方行动迟缓，难以机动为主要目的的化学袭击。 扰乱性化学袭击(harassing chemical attack)指以扰乱对方作战行动，疲惫其有生力量为主要目的的化学袭击。
致死性化学毒剂对策，综述了防御化学袭击的措施。
Lethal chemical Agent Countermeasures reviews some of the measures taken to defend against chemical attack.
该报告的作者推测，男孩在胎儿发育阶段可能对此类化学袭击反应更为敏感，这就可以解释为什么男孩比女孩更有可能出现行为问题。
The foetal development of boys may also be more sensitive to this kind of chemical assault, the authors speculate, which could explain why boys are more likely to have behavioural problems than girls.
这显然是走回布什时代的宣言，强调了美国可能会使用核武器如果它受到了化学或生物武器的袭击的可能性。
This apparently walks back from a Bush-era declaration that underscored the possibility that the United States might use nuclear weapons if it suffered a chemical or biological attack.
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