英和和英

spectral colors

a spectrum called an X-ray spectrum

obscure rays in a spectrum

of or relating to a spectrum

the negative pole

the negative pole―the cathode

an optical spectrum consisting of narrowly spaced lines, called band spectrum

an emission spectrum called line spectrum

a buoy

the angle of fire

the spectrum of infrared radiation

an oblique line

a dotted line

an inclined plane

a reflective surface

a specular surface

the angle of reflection

to separate light into rays of different colors

a thumbnail sketch

of light, to separate into a spectrum

spectral emanations

the spectrum of ultraviolet radiation

an acute angle

axial angle

the horizon―（線なら）―a horizontal line

the angle of refraction

the horizontal axis

an obtuse angle

the uvular r

an angle of inclination