例句：
工程机械constructionmachineryandequipment
中国工程机械工业协会ChinaConstructionMachineryAssociation
机械工程材料materialformechanicalengineering
机械设备的安装工程Installationofmachineryandequipment
挖掘机械excavatingmachinery或MiningMachinery
挖掘机械是整个工程机械产品体系中非常重要的一类产品，相关的词汇主要有以下几个
挖掘机excavator
液压挖掘机hydraulicexcavator
小型挖掘机mini-excavator
国产液压挖掘机domestichydraulicexcavator
机械挖掘机cableoperatedexcavator
正铲挖掘机forwardexcavator
反铲挖掘机backhoeexcavator
抓铲挖掘机clamshellexcavator
拉铲挖掘机draglineexcavator
伸缩铲挖掘机telescopicboomexcavator
单斗挖掘机singlebucketexcavator
轮胎式单斗挖掘机wheeltypesinglebucketexcavator
履带式单斗挖掘机crawlersinglebucketexcavator
多斗挖掘机multi-bucketexcavator
斗轮式挖掘机bucketwheelexcavator
挖沟机trencher
链斗式挖沟机chainbuckettrencher
斗轮式挖沟机bucketwheeltrencher
