distance at which a given standard object can be seen with the unaided eye
visual range 30秒了解
- (noun) distance at which a given standard object can be seen with the unaided eye
Meanings
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1
noun distance at which a given standard object can be seen with the unaided eye
Summary
distance at which a given standard object can be seen with the unaided eye
- (noun) distance at which a given standard object can be seen with the unaided eye
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