名词
中文翻译：半圆镜
同义词：
['semicircle mirror', 'semicircular mirror例句：1. The teacher asked the students to hold a semispeculum in front of their eyes.（老师要求学生们将半圆镜放在眼睛前面。）2. The artist used a semispeculum to create a unique effect on the canvas.（艺术家使用半圆镜在画布上创造了独特的效果。）']
例句：
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1. The teacher asked the students to hold a semispeculum in front of their eyes.
老师要求学生们将半圆镜放在眼睛前面。
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2. The artist used a semispeculum to create a unique effect on the canvas.
艺术家使用半圆镜在画布上创造了独特的效果。
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3.During the experiment, the students observed the phenomenon of light refraction through a semispeculum.
实验期间，学生们通过半圆镜观察光的折射现象。