Warning: file_put_contents(): Only 0 of 6086 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/201990.com/index.php on line 55 drill jumbo例句_drill jumbo英汉例句_drill jumbo双解例句_耀久九英英词典
This paper describes the principle of hydraulic system, application of plug-in cone valves and press's advance mode, etc. of open-pit drill jumbo model KZL-120. 對KZL-120露天鑿巖鑽車的液壓系統原理、插裝錐閥的應用、推進方式等作了敘述。