left semicircle
常見例句
- 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.
觀察目鏡由凹鏡和分隔柵組成，在目鏡中可同時(shí)看到二個(gè)半圓色，其左邊的為試樣顏色。
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