名词
中文翻译：气体战
同义词：
['gas attack', 'chemical warfare', 'biological warfare']
例句：
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1. The militaryhas been accused of using gas warfare against civilians during the conflict.
军事被指控在冲突中使用毒气攻击平民。
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2.The government has announced plans to ban the use of gas warfare in international flights.
政府宣布计划禁止在国际航班中使用毒气战。
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3.The scientists are working on developing a new type of gas warfare that can be used in battlefields without harming humans.
科学家们正在研究开发一种新型的气体战，可以在战场上使用而不伤害人类。