Warning: file_put_contents(/www/wwwroot/ppbbu/80125.cn/cache/0d4881334f8047538a33fc5e31f915ea.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/80125.cn/index.php on line 58 drill jumbo例句_drill jumbo英汉例句_drill jumbo双解例句_食材鋪反向词典
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。