By the continuous-feeding external-heating rotary kiln, the experimental studies on the gas yield characteristics, mass balance and net energy income of the polyethylene pyrolysis were performed.
在连续给料外热式回转窑试验台上，以聚乙烯为试验物料进行了热解产气特性、质量平衡以及能量净收益的试验研究。
It could yield a net benefit (for example, by improving energy efficiency), or it could stop the economy cold.
它可能会产生净盈利(比如，通过提高能源利用率)，或者使经济升温。
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