Warning: file_put_contents(): Only 0 of 4924 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/5678977.com/index.php on line 55 x-ray counter例句_x-ray counter英汉例句_x-ray counter双解例句_加林查网西语词典
MINIMAM UTILITIES: Air-cooled small X-ray tube and gas filled proportional counter have been employed, and the only requirements are AC Power Source and Helium Gas. 使用简单：仪器内置气体密封型比例计数管，只要接上电源和氦气（保护），就可以正常使用仪器。