常见例句双语例句This pedestal rock began as a mass of pebbly sandstone.这个基岩开始大量的含砾砂岩。The caprock of the hard Slick Rock Member of the Entrada Sandstone is perched upon a pedestal of mudstone.在硬盘斯利克罗克成员恩特拉德砂岩盖层是建立在对泥岩座栖息。 返回 rock pedestal