Warning: file_put_contents(): Only 0 of 4880 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/5678977.com/index.php on line 55 jumbo drill例句_jumbo drill英汉例句_jumbo drill双解例句_加林查网西语词典
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. 对KZL-120露天凿岩钻车的液压系统原理、插装锥阀的应用、推进方式等作了叙述。