词汇	secondary grouting
释义	secondary grouting 二次灌浆
随便看	optical reading equipment optical reading head optical reading input system optical reading range optical reading system optical reading theodolite optical read only memory optical read-only memory optical read only storage optical readout optical read-out optical readout device optical readout unit optical read/write head optical realization optical reasonator optical receiver optical receiver and transmitter optical receiver aperture optical receiver assembly optical receiver-downlink optical receiver front end optical receiver module optical receivers optical receiving set