film base的用法和樣例：
例句
- Microscopic needle-shaped crystals of herapathite are embedded in a plastic base.
將碘硫酸奎寧的微觀(guān)針狀晶體嵌于塑料片基之中。 - Thinner sheets of tough and can be used as colloidal silver compounds based on-chip, so that it became the first practical photographic film.
更薄和更韌的薄片可以用作膠狀銀化合物的片基，這樣它就成了第一種實(shí)用的照相底片。
