Warning: file_put_contents(/www/wwwroot/ppbbu/80125.cn/cache/a0cc11ad88dd357cd9f82852a8d00829.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/80125.cn/index.php on line 58 rare gas compound例句_rare gas compound英汉例句_rare gas compound双解例句_食材铺反向词典
Derivative gas chromatography is used to analyze the fluorinated compound derived from the gas out of the rare earth concentrates containing fluorine. 应用衍生气相色谱法测定含氟稀土精矿焙烧逸出气体中的氟化物。