网络与数据通信 网络互联 释文 protocol independent multicast, PIM 协议无关多播
- water leech
- water leisure sports
- waterless offset printing
- water lettuce
- water level control
- water level duration curve
- water level fluctuation
- water level forecasting
- water level gauge
- water level inscription in ancient China
- water levelling in ancient China
- water level observation
- water level staff in ancient china
- water level station
- water lifting
- water lifting cylinder wheel
- water lifting irrigation
- water lifting machinery in ancient China
- water light pollution
- water lily
- water-lily family
- waterline
- water-line section
- water-logged compost
- water logging