Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/0389c0ca270753d71c6a982fb543345f.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 ectotheca是什么意思，ectotheca的翻译，ectotheca音标、读音、用法和例句_94生活常识网有道词典
In accordance of the phenomenon of many ectotheca desquamations on freezing parts of main shaft in Wugou Mine,the paper analyses the causes and introduces dealing methods. 五溝煤鑛主井井筒凍結段外壁多処出現剝裂現象,本文對此進行了原因分析,竝介紹了処理方案。