検索内容:
凸面: convex area
This mirror has a convex shape.
凹面: concave area
This concave area is suitable for gathering light.
convex area
This mirror has a convex surface.
that which has a non-flat surface; uneven, bumpy
This road is difficult to walk on because it has many bumps.
surface of the road
The road surface is frozen, so you need to be careful when driving.
凸: convexity
煙突: chimney, smokestack
He is cleaning the chimney.
agate / onyx
Agate is my favorite gemstone.
concave area
This mirror has a concave area.
(anatomy) an intertransversarius muscle
The intertransversarius muscle is an important part of our body, especially part of the back muscles.
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