V2EX initial side

Initial Side

Definition 释义

initial side:常用于几何、图示或操作说明中,指“起始的一侧 / 最初的一面”,强调以哪一边作为开始的参照面(如翻折、旋转、测量或标记时的起点)。在三角学语境中也可指角的“始边”(与 terminal side“终边”相对)。

Pronunciation 发音(IPA)

/nl sad/

Examples 例句

Start from the initial side of the box.
从盒子的初始一侧开始。

In the diagram, the ray on the right is the initial side, and the angle opens counterclockwise from it.
在图中,右侧的射线是始边,角从它开始逆时针张开。

Etymology 词源

initial 来自拉丁语 initium(开始、开端),经由法语进入英语,表示“最初的、起始的”。side 来自古英语 sīde,表示“侧面、边”。initial side 属于组合表达,字面即“起始的那一边”,在数学与说明文中更为常见。

Related Words 相关词

Notable Works 文学作品/著作中的用例

该短语作为固定搭配在文学名著中不常见,更常见于三角学与几何的教材、讲义与科普写作中(用来定义角的“始边/终边”)。例如在一些公开教材的三角函数章节(如 OpenStax 的《Precalculus》相关内容)中常会出现 initial side 这一术语。

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