Bottle cover will go through second times sterilization, which could reduce the bacterium group during sending covers.
瓶盖在送盖过程中二次杀菌减少菌群。
The reasons for the carboxyl end group fluctuation of bottle grade PET base chips were analysed.
对瓶用基片端羧基波动的原因进行了分析。
A group of researchers in South Africa has developed a filter that can purify water straight from the bottle.
南非一组研究人员发明出一种可直接在瓶子中使水净化的过滤器。
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