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ZH基本点Noun
ZH
基點（basis point，bp）的定義為“百分之零點零一”（0.01%）或“一個百分點的一百分之一”，是一種“萬分比”，可用數學符號 ‱（萬分號）表示。
基点萬分率
bn:00474544n Concept
ZH
基點（英語：cardinal points）是高斯光學中位於旋轉對稱的焦点光学系统的光轴上的三对点，它们分别是焦點 、主點和节点。
卡迪那點基點
bn:24844008n Concept
English:
optics

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