常見例句雙語(yǔ)例句Due to the curvature of the spherical surface lens is different, the light through the lens center and edge for refractive index and can't focus on different same focus, leading to definition decline.爲(wèi)改善像差而引起的清晰度下降問題，通常採(cǎi)用縮小光圈的辦法來(lái)提高成像的質(zhì)量。 返回 center of spherical curvature