常见例句双语例句The main way to process local produced coal is carbonization at lower temperature with semicoke, coal tar, coal gas, and so on as the products.利用陕北低变质煤为原料进行低温干馏，得到半焦及煤焦油、煤气等产品，是目前陕北地方煤化工的主要工艺。 返回 coal carbonization gas