Warning: file_put_contents(): Only 0 of 5244 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/69228.com/index.php on line 55 无码人妻视频一区二区三区,黑色丝袜无码中中文字幕,成人无码区免费a片www
Information from practical operation indicate that in exploration of water abundant placer goldby vibratory sampling drill, no representative rock sample could be collected. 實際施工資料表明;在富水性強的砂金鑛勘探中;採用震動取樣鑽;無法獲得有代表性的巖樣.