集光本领(Light Gathering Power)望远镜口径愈大，集光力愈强，可以看见星星的数目亦增加，集光力是望远镜收集光线比眼睛强多少倍的意思。
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旋光本领 [光] rotatory power ; optical rotatory power ; rotary power ; optical rotating power
聚光本领 light gathering power
屈光本领 dioptric power
自发旋光本领 spontaneous optical rotatory power
磁旋光本领 magnetic rotatory power ; magnetic rotary power
吸光本领 absorbancy
质量旋光本领 massic optical rotatory power
比旋光本领 specific optical rotatory power
发光本领 luminous power ; luminosity
聚光本领(集光力)。
本文用矩阵方法讨论旋光本领，这种方法揭示了旋光本领的本质，因而读者容易理解。
In this paper we discuss the rotatory power by means of the matrix, this method reveals nature of the rotatory power and it is not difficult for a reader to understand.
为了提高仪器探头的集光本领，在探头的端面处又粘一自聚焦透镜，从而可提高仪器的灵敏度以及测量精度。
In order to improve the sensor ability of collecting light, the authors add a self focus len on the to…
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