refraction
n 折射作用（refract+ion）
释义2：
refraction
/ rI5frAkFEn /
◙ noun1. [mass noun] [Physics] the fact or phenomenon of light, radio waves, etc., being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density• [物理] 折射 change in direction of propagation of any wave as a result of its travelling at different speeds at different points along the wave front• （波的）折射 measurement of the focusing characteristics of an eye or eyes• （眼睛）屈光度测定，验光【语源】
1. mid 17th cent.: from late Latin refractio(n-), from refringere 'break up' (see refract )
俄语/英语字母转换