| 释义 |
1 ?四元系统 ... Quaternary system 第四系 quaternary system 四元系统 Quaternary 第四纪第四系 ... 2 ?四元制 ... quaternary geology 第四纪地质学... quaternary system 四元制,四元系,四元... quaternary ammonium 季铵 ... 3 ?第四系 ... quaternary sediment 四组分沉积物 Quaternary system 第四系 quaternary system 四元系统 ...
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Quaternary System are not developed in eastern Liaonmg. - 2
In Jingyuan region, 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。 - 3
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。
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