常见例句雙語例句Coal-bearing strata belong to Middle-Lower Jurassic Series Jiangcang Formation, coal-forming environment was Mesozoic faulted basin fluviolacustrine, bog facies.含煤地層爲中下侏羅統江倉組，成煤環境屬中生代斷陷盆地內河湖、沼澤相沉積。 返回 bog formation