网络与数据通信 有线网络 释文 data service unit/channel service unit, DSU/CSU 数据服务单元/通道服务单元
- humic acid regulator
- humic acids fertilizer
- humic fertilizers
- humic property
- humic-sapropel type kerogen
- humic substance
- humic substance; humus
- humic type kerogen
- humid
- humid climate
- humidification
- humidities resistance of wood-based panels
- humidity
- humidity and moisture measuring instrument
- humidity environment test
- humidity measuring instrument
- humidity ratio
- humidity sensing element
- humidity-sensitive ceramics
- humidity sensor
- humidity variables
- humidor
- humid region hydrology
- humifuse euphorbia
- Humiliated and Insulted