不过，由于垃圾腐烂的过程产生了大量温室气体，传统的垃圾堆置法并不能节省开支。
But traditional composting does not save as many greenhouse-gas emissions as it might, since it still involves decomposition.
介绍了冷轧堆法练白真丝绸的原理，堆置时间和助剂浓度对练减率的影响。
It is introduced the principle of silk degumming and bleaching with cold pad batch and the effects of batching up time and additive concentration on degumming loss percentage.
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