本次清洗了12个小号循环萃取器，12平底烧瓶，以及一些集液瓶、滴管等仪器。
We cleaned 12 small size circular extractors, 12 flat bottom flasks, some collecting liquid bottle and burettes.
火山作用激发和强化了地壳内的热水循环萃取过程，同时也是银硐子矿床形成的强烈且稳定的动力系统。
Volcanic process, which has stimulated and strengthed the extraction by hot water circulation, is a strong and stable dynamic system for the formation of the Yindongzi deposit.
介绍了新型离心萃取机的工作原理、特点及其在碱性蚀刻液再生循环中的应用状况及前景。
The working principle, characteristics and application status and trend of a new type of centrifugal extractor in alkaline etching solution recycling were introduced.
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