Warning: file_put_contents(/www/wwwroot/ppbbu/28094.com/cache/af227fc0e00212bc1f6c7004f274a972.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/28094.com/index.php on line 55 jumbo drill例句_jumbo drill英汉例句_jumbo drill双解例句_贰靶汉英词典
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。