(optics) angle of refraction

enter

to change; to become different; to turn into; to become (something else)

(often attributive) underwater

A place name. / a surname

a corner (e.g., of a desk; compare 隅) / an edge / a street corner

refraction / inflection

to refract / to inflect (a word) / to be warped

a light, beam, illumination / a gleam, glow, ray / a glimmer, shine, sparkle / a luster/lustre, polish, sheen / glory, influence, power / a glimmer, gleam / positive aspect

to go in; to come in / 要る: to be necessary, to be required