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In order to understand how we see, we need to understand color and light. What is the relationship between the two?
Q. In order to understand how we see, we need to understand color and light. What is the relationship between the two?
A. Light is elec...
جدول تفکیک تعرفه های خدمات مهندسی در سال ۱۳۹۴
جدول تفکیک تعرفه های خدمات مهندسی در سال ۱۳۹۴
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