单词	进入营运
释义	进入营运entry into service
随便看	reciprocation reciprocations reciprocative reciprocator reciprocators reciprocatory reciprocitarian reciprocities reciprocition engine reciprocity reciprocity calibrated transducer reciprocity calibration reciprocity calibration apparatus reciprocity calibrator reciprocity effect reciprocity effects reciprocity failure reciprocity for antennas reciprocity for circuits reciprocity for microwave network reciprocity formula reciprocity law reciprocity law failure reciprocity law， thermal reciprocity method