quaternary system stratum
quaternary system stratum
第四系地层
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Gongleting spring emerges at the contact place between the dolomite of wumishan formation, jin system and the stratum of quaternary system and is an overflow spring.
公乐亭泉出露于蓟县系雾迷山组白云岩地层与第四地层接触部位，为溢出泉。
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