计算机硬件 存储设备 释文 end-of-tape marker 磁带尾标
- paraxial diffraction
- paraxial focus
- paraxial geometrical optics
- paraxial image
- paraxial imaging
- paraxial optical system
- paraxial optics
- paraxial ray
- paraxial rays
- paraxial region
- paraxial viewfinder
- para-xylene separation process
- parazoan
- Parazulazumkhlaozhaoyuhuo
- parboiled rice
- parcel identification
- parcel land price
- parcel post
- parcel post insurance
- parcels
- parcel sorting machine
- parcel subdivision
- parcel survey
- parchment
- parchment archives