Warning: file_put_contents(): Only 0 of 6266 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/001308.com/index.php on line 55 coal carbonization gas例句_coal carbonization gas英汉例句_coal carbonization gas双解例句_零食美味英文词典
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。