常見例句Barite from both Hartsel and Stoneham can be cleaned in hydrochloric acid, as it will loosen the clay and iron present on these specimens. 重晶石，由雙方hartsel和斯通漢姆可以清理鹽酸，因爲這將是放松粘土和鉄目前對這些標本。 返回 Hartsel