In fact, the filter holder is a convenient alternative to more expensive or awkward optical filter setups.事实上，这个滤光片支架可以用于许多更加昂贵的光纤应用中。
The image was obtained by taking multiple exposures through bandpass optical filter sets appropriate for fluorescein, Te成纤维细胞分化为成软骨细胞、成胶原细胞和成骨细胞，形成体内的纤维组织、肌腱、腱膜、各种支持组织和粘合组织。