单词	线路层
释义	线路层line layer
随便看	point-to-multipoint communication point-to-multipoint delivery point-to-multipoint service point-to-plane point-to-plane--discharge point to point point-to-point point to point and multidrop transmission system point to point channel point to point circuit point to point communication point-to-point communication point-to-point comparison method point to point connection point-to-point connection point to point control point-to point control point-to-point control point to point control--positioning control point to point control(ptp) point to point control{=ptp} point to point control system point-to-point control system point to point data link point to point data link--ppdl