常见例句双语例句Coal-bearing strata belong to Middle-Lower Jurassic Series Jiangcang Formation, coal-forming environment was Mesozoic faulted basin fluviolacustrine, bog facies.含煤地层为中下侏罗统江仓组，成煤环境属中生代断陷盆地内河湖、沼泽相沉积。 返回 bog formation