鉴于这些化学物质都是比二氧化碳更有危害性的温室气体，这一效用同样有助于抗击全球变暖。
Since both of these chemicals are more potent greenhouse gases than carbon dioxide, this effect, too, should help combat global warming.
就活性氧化锌的效用在内胎胶中进行了小配合和车间大料及成品试验。
An evaluation was made on the effectiveness of active zinc oxide in tire tube compound by laboratory compounding, workshop compounding, and finished product tests.
以目前可利用的一个试验，补充学龄前儿童抗氧化微量营养素对于预防瓜西奥科儿症的效用没有明确的结论。
Based on the one available trial, we could draw no firm conclusion for the effectiveness of supplementary antioxidant micronutrients for the prevention of kwashiorkor in pre-school children.
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