英语词汇“coal coring tool”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	coal coring tool
释义	coal coring tool 煤心采取器；又称“取煤器”、“取煤管”。煤田钻探钻进过程中；专门用于采取煤心的一种特殊器具。
随便看	unemployment colony unemployment community unemployment compensation Unemployment Compensation Board unemployment compensation commission unemployment compensation law unemployment compensation payable unemployment compensation payment unemployment compensation regulation unemployment compensations unemployment compensation supplement unemployment compensation system unemployment compensation tax unemployment compensation taxes unemployment composition Unemployment continued its remorseless rise Unemployment declined to 4 percent last month unemployment distress unemployment dole unemployment duration unemployment equilibrium unemployment figures unemployment for university graduates unemployment fund unemployment graduates