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
- simple number
- simple object
- simple object access interface
- simple object access protocol
- simple object access protocol, SOAP
- simple obligation
- simple observation method
- simple one-step iteration
- simple ordering
- simple orthorhombic lattice
- simple pair
- simple path
- simple pendulum
- simple period
- simple periodic function
- simple phase
- simple phrase
- simple pistil
- simple point
- simple polariscope method
- simple pole
- simple polyconic projection
- simple polyembryony
- simple polygon
- simple polyhedron