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本文主要对城镇燃气加臭的必要性、国内外燃气加臭的现状、臭剂的选择和臭剂加入量等作一一简单的叙述。
This article mainly describes the necessity of odorization of town gas, the status quo of gas odor at home and abroad, the selection of odorants, and the amount of odorant added.