Lower prices give companies less incentive to invest in cutting their greenhouse gas output.
低迷的价格更难刺激公司在降低他们的温室气体排放上投资.
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The successful introduction of locomotive air oxygen technology, oxygen generator oxygen gas output up to 90 %.
机车成功的引入航空制氧机技术, 制氧机输出的气体氧气含量高达90%以上.
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