光学
Optical
optics
Optic
Optically
Light
Microscope
Aerosol
Oct
Thin
OPO
Film
interference
lighting
AoD
OCR
Photonic
photonics
films
pickup
tomography
optimeter
Holography
phototach
Satellite
Fibreoptic
OCB
Phase
OPOs
OPTAR
optices
cable
Microcavity
OCRS
defocus
bistability
chiral
anisotropy
Enantiomerically
satellites
optidress
optical observation
optical recording
photology
optical dichoism
optical extinction by micro-particles
Application to optical experiment
Photics
optical panel
阀相当管长
equivalent pipe length valve
nonrenewable energy source
单位管长换热量
heat transfer quantity per meter
heat of per pipe length
heat flux of unit pipe length
配件相当管长
fitting equivalent pipe length
rotational energy level
弯管相当管长
bend equivalent pipe length
mechanical energy equation
形管相当管长
vibrational energy level
tee equivalent pipe length T
缩管相当管长
contraction equivalent pipe length
thermal energy equation