短語(yǔ)詞組短語(yǔ)wax -oil mixture 蠟油混合物Wax -oil pump 蠟油泵Petroleum wax - Oil 石油蠟wax troubled oil wells 結(jié)蠟油井wax and oil 蠟和油脂high wax content oil 高含蠟原油 返回 wax oil