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Penanda aras penerokaan geologi di industri petroleum New China, "Yan Shen Tan Yi", yang terletak di tengah -tengah Shima ke Xiaogou di utara Yang Jia Gou di Yanchang County, dengan kedalaman 2846.63 meter, adalah parameter geologi yang paling dalam di China Pada tahun 1950 -an, menyediakan data rujukan dan maklumat untuk pemahaman kemudian tentang struktur geologi Ordos Basin, dan sangat penting dalam sejarah pembangunan petroleum China. Ia dipanggil "tiang besi" dengan baik.
https://v.qidian.sxtvs.com/data/video/2023/04/13/33485_c4e54300e380461325c66b224d2c9613_pub.mp4
November 15, 2024
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November 15, 2024
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