在使用胶片之前,使用的摄影方法是照相底板。
If that trend continues, liquid fuels might become as obsolete as photographic film.如果这一趋势持续下去,液体燃料还真可能像胶片一样绝迹。
Even viewing it through sunglasses or photographic film is also 'wholly inadequate', experts warned.专家警告,就算是通过太阳镜或者相片底片看日食也是“绝对不正确的”。