quaternaries

美 　英

• adj.【地】第四紀(jì)[系]的；四個一組的；由四部份組成的；第四的
• n.【地】第四紀(jì)；【數(shù)】四進制；四個一組的東西；第四組組成部分
• 網(wǎng)絡(luò)季銨鹽類

詞形變化

復(fù)數(shù)：quaternaries  

英漢解釋

adj.	1. 【地】第四紀(jì)[系]的 2. 四個一組的;由四部份組成的;第四的 3. 【化】四元的;四價的;季的;【數(shù)】四進制的
n.	1. 【地】第四紀(jì) 2. 【數(shù)】四進制 3. 四;四個一組的東西;第四組組成部分

英英解釋

n.	1. the fourth member of a set 2. the current period of geologic time, beginning 1.6 million years ago and characterized by the appearance and dominance of humans
adj.	1. consisting of four parts, or occurring in sets of four 2. bonded to four other nonhydrogen atoms or groups of atoms, or containing atoms bonded in this way

例句

The Quaternaries are three in number - this means that the 12 signs of the Zodiac are divided into three categories of four signs each.

季胺鹽是在數(shù)量上-這意味著12生肖跡象劃分為三個類別，每四個標(biāo)志。

Application of the gemini quaternaries containing ester- bond surfactants in the determination trace aluminium

酯型雙子季銨鹽表面活性劑在微量鋁測定中的應(yīng)用

Synthesis and properties of quaternaries ammonium cationic surfactants derived from nonylphenol

壬基酚衍生的季銨鹽陽離子表面活性劑的合成及性能