provisional pollution category臨時(shí): at the time when sth. happen ...污染: pollute; contaminate類(lèi)別: classification; category; ge ...污染類(lèi)別: pollution category環(huán)境污染類(lèi)別代碼: codes for environmental pollution categories下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯