超音波法液位元元元元元元测定
ultra-sonic method of liquid meaduremert
半导体真空蒸镀设备
semiconductor vacuum evaporation equipment
二元光学元件
Abdominal incision split
binary optical element
binary optics
Binary optics element
Binary optics elements
Binary optical elements
5-NITROSALICYLALDEHYDE-DIAMINOMALENITRILE
被动纤维光学元件
passive fibre optics element
大口径光学元件
large aperture mirror
large-aperture optics
large mirror
Large aperture optical components
Large aperture optical element
large aperture optical elements
多层衍射光学元件
Multi-layer diffractive element
非线性光学元件
nonlinear optical element
菲涅耳型衍射光学元件
Fresnel diffractive optical element
分立光学元件结构
bulk optical implementation