quaternary

quaternary

[kwə'tɜ:nərɪ]

n.四，四个一组;

adj.第四组中的组成部分，四进制的;

复数： quaternaries

英文例句/中文翻译：

1、

The important technique of dating quaternary: uranium series dating technique by thermal ionization mass spectrometry

第四纪年代学的利器：热电离质谱铀系定年技术

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2、

In the Quaternary formation and Upper-Tertiary formation of Yinggehai Basin, except for abnormal pressure and compaction, there are mainly four factors affecting acoustic time, which are lithology variation, cementation, gas in the formation and crack.

莺歌海盆地第四系和上第三系地层内除异常压力和压实作用外，影响声波时差的因素主要有岩性变化、成岩胶结作用、地层含天然气及裂缝的存在。

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3、

An improvement of volumetric method for determination of potassium with sodium tetraphenylboron and quaternary ammonium salt

四苯硼酸钠季铵盐容量法测定钾的改进

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