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单词
quaternary industry
释义
quaternary industry
简明释义
[经] 第四产业
专业释义
1
经济学
第四产业
双语例句
1
The invention relates to a moisture absorption humectant which adopts trehalose
quaternary
ammonium salt and a preparation method thereof, belonging to the daily chemical field and medicine
industry
.
本发明涉及日化领域及医药行业,具体是一种采用海藻糖季铵盐的吸湿保湿剂及其制备方法。
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更新时间:2025/8/21 18:12:09