透气性
Some problems about permeability for gas in high grain bulk were resolved, and the maintaining time of effective concentration met the desired requirement. There were no insects in 30 days after fumigation.
该技术解决了高粮堆药剂渗透问题,PH3有效浓度保持时间达到预期要求,熏蒸后30天未发现活虫。
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