a convex lens that focuses the rays of the sun; used to start a fire
sunglass 30초 만에
- (noun) a convex lens that focuses the rays of the sun; used to start a fire
Meanings
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1
noun a convex lens that focuses the rays of the sun; used to start a fire
Summary
a convex lens that focuses the rays of the sun; used to start a fire
- (noun) a convex lens that focuses the rays of the sun; used to start a fire
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