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微波暗室
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microwave anechoic chamber
微波暗室
采用吸波材料对室内表面进行覆盖,使入射到吸波材料上的电磁波绝大部分被吸收,从而抑制室内多径反射的构造空间。又称全波暗室、无反射室。
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water conservancy informatization planning
water conservancy in pastoral area
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water conservancy machinery in ancient China
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Water Conservancy Newspaper Clippings of Republic of China
water conservancy of ancient Beijing city
water conservancy of ancient Chengdu city
water conservancy of ancient Jingzhou city
water conservancy of ancient Shaoxing city
water conservancy of ancient Shouzhou city
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