商务英语原文--Manual Hand Drum Pumps
本文档由 文山文海 分享于2008-12-30 17:39
Although drums with their lids removed are frequently used in industrial environments for storing dry goods and for simple disposal of inert liquid waste, there are safety concerns about storing other chemicals and liquids in&nb..
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君，已阅读到文档的结尾了呢~~