英和和英

optical properties

spectroscopy

optical supplies

an optical instrument

an optical instrument

in an optical manner

adjust the line of sight of (an optical instrument)

a lens or mirror used to concentrate light on an object, called a condenser

an optical instrument, called spectroscope

the optics of a telescope

prismatic light

optically distorted

the area which a given light can illuminate

pertaining to a kind of distorting optical system

a photometer

a luminous body

a device for projecting illuminated images, called a projector

a pencil of light

photosynthesis

analogical construction

to glitter

the rectilinear propagation of light

the act of light slanting

to emit light―shine forth

to give off light

atomic structure

an optical device for viewing stereoscopic photographs

an elliptic construction

molecular structure

an optical instrument for spectrographic analysis