Warning: file_put_contents(/www/wwwroot/ppbbu/62383.com/cache/f22a3b493ccd195516d1e9093075f38f.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/62383.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_流逝汉英词典
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. 利用陝北低變質煤爲原料進行低溫乾餾，得到半焦及煤焦油、煤氣等産品，是目前陝北地方煤化工的主要工藝。