单词	垂板龙骨井
释义	垂板龙骨井centerboard well
随便看	direct current vehicle direct-current voltage direct-current voltage characteristic direct current voltammetry direct current winding direct current，dc direct current；dc direct current｛=dc ｝｛=dc｝ direct cut direct cutover direct cycle direct--cycle direct-cycle direct cycle access storage device direct cycle access storage device (dasd) direct cycle access storage device {=dasd} direct cycle reactor direct-cycle reator direct-cycle steam direct cylinder addressing direct damage direct damping direct data access arrangement direct data attachment direct data attachment，dda