名词
中文翻译：气体标准
同义词：
['gas regulation', 'gas standards']
例句：
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1. The new gas standard requires all vehicles to have a minimum emission level.
新的气体标准要求所有车辆的排放量最低。
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2. The gas standard has been revised to reduce air pollution.
气体标准已经修订以减少空气污染。
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3. The gas standard is set to be implemented nationwide.
气体标准计划在全国范围内实施。