Warning: file_put_contents(): Only 0 of 5105 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/69228.com/index.php on line 55 狠狠躁天天躁视频,免费高清理伦片a片在线观看
1. N a method of testing soils by pressing a cone of standard dimensions into the soil under a known load and measuring the penetration 錐體貫入度試驗; 檢測土壤的一種方法，通過將一定負荷的標準尺寸椎體插入土壤測得其穿透度