... 孔导体电流存取装置 hole conductor current access device 孔计数检查 hole count check 孔计数错误 hole count error ...
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Sampling hole has many small holes to reduce puffball superposition and reduce error of animalcule count.
采集口为无数微孔,减少了尘菌重叠,降低了微生物计数错误。
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