Also, contact between the film and processing equipment should be kept to a minimum.
同时，薄膜和加工设备的接触应保持在最低水平。
It's wise to keep personal conversations, jokes and physical contact to a minimum.
将私家交谈，笑话或身体接触保持到最低限度才是明智的。
It's wise to keep personal conversations, jokes and physical contact to a minimum.
将私家交谈，笑话或身体接触保持到最低限度才是明智的。
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