light component短语¹⁴⁴⁹⁷²⁺² 基本例句 轻烃 Many kinds of pollutants, such as light component. sediment contaminated cleaning fluid, leakage from pump units and rainwater, are existed in the daily operation of tank farm. 油罐区在日常操作过程中存在许多污染源，如油气排放、油罐排水、油罐清洗、机泵等的泄漏、罐区雨水等。 cnki