left semicircle
基本解释
- [交通运输工程]左半圆
英汉例句
- Observation eyepiece consists of concave mirror and a separate gate is formed, in the eyepiece can be seen at the same time the two semicircle color, its left for the sample color.
观察目镜由凹镜和分隔栅组成，在目镜中可同时看到二个半圆色，其左边的为试样颜色。
www.wuhanyiqi.eb80.com
双语例句
专业释义
- 左半圆