网络与数据通信 网络互联 释文 fixed length subnetting 定长子网划分
- orthosis
- ortho-spectrum
- ortho state
- orthostate
- orthostatic hypotension
- orthostigmat
- orthosurface
- orthosymmetric matrix
- orthotester
- orthotetrahedral quartic
- orthotomic
- orthotomy
- orthotope
- orthotransversal
- orthotropic
- orthotropic elastic body
- orthotropic fibre-reinforced plastic
- orthotropism
- orthotropous ovule
- orthotropy
- ortho-xylene
- ortonal
- ortoq
- ORU
- ORV