quaternary怎么读,quaternary的音标和真人发音
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quaternary是什么意思,quaternary的意思是

n.四,四个一组
adj.第四组中的组成部分,四进制的

quaternary 变化形式

复数: quaternaries
星级词汇:

quaternary 的用法和双语例句“点击”或“选中”例句中的单词,就可以看到词义解释

The ics 's brian pitt adds that since the holocene epoch -- a part of the quaternary period stretching back roughly 12 000 years -- already recognizes the influence of man no additional designation is needed .
来自ics的布莱尔皮特补充,自全新世开始---第四纪时期追溯到大约12000年前的一部分---已经认识到人类的影响,无需额外的名称。
Standard test method for synthetic quaternary ammonium salts in fabric softeners by potentiometric titrations .
用电势滴定法确定织物柔软剂中合成季铵盐的试验方法。
Main compositions : double strands quaternary amine salt , moisturizing grease , plants extract .
主要成份:新型抗菌剂双链季胺盐、润肤脂,植物提取液。
Stripping of gold , silver and copper from loaded quaternary ammonium salt by acidified thiourea solution .
硫脲反萃取季铵盐负载有机相中金、银、铜。
Paleolithic archaeology is closely associated with quaternary research .
第四纪科学与旧石器考古学关系非常密切。
Several polyoxyethylene type quaternary ammonium salt cationic surfactants were selected to investigate their interaction with acid dyes and influence on the dyeing properties .
摘要选择了几种聚氧乙烯型季铵盐阳离子表面活性剂,探讨了这些表面活性剂与酸性染料的相互作用以及对染料染色性能的影响。
Cationics are usually quaternary ammomium salts .
阳离子表面活性剂通常为季铵盐类。
Quaternary diversification in european alpine plants : pattern and process .
欧洲高山植物第四纪多样性:模式和过程。
In jingyuan region , the quaternary system developed well , and zoned clearly , and there are complex genetical types .
靖远地区第四系发良良好,分带性明显,成因类型较为复杂。
And ordovician and cambrian , quaternary of the people who hailed from a fight .
和奥陶纪、寒武纪、第四纪的生灵们打个招呼。