英语词汇“open-pit development”的翻译、意思、用法、释义-英汉汉英双解词典

单词	open-pit development
释义	open-pit development 开拓
随便看	astern running test astern sea astern selecting pilot air valve astern servomotor astern speed astern stage astern stages astern steam astern steam turbine astern steering test astern stopping test astern synchro astern synchro- a stern taskmaster a stern teacher a stern test of nerves astern through feather position astern thrust astern torque astern towing astern trial astern turbine astern-turbine astern valve astero-