英语词汇“derrick head”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	derrick head
释义	derrick head un.吊杆端；🌏吊杆头；吊杆端吊杆头
随便看	gear transmission error gear transmissions gear transmission shaft gear transmission system gear transraissicn gear trasmission gear trolley machine Geartu gear tumbler gear turbine gear two flank rolling tester Gearty gear type gear-type balancer gear type booster pump gear type coupling gear-type coupling gear type flexible coupling gear type hydraulic motor gear-type hydraulic motor gear type locating ring gear type lube oil pump gear type microinjector gear-type microinjector gear type motor