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波带板
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波带板
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zone plate
波带板
具有使点光源或不大的物体成实像的作用,且对于所考察的点,只让奇数或偶数半波带通过,使得波阵面在所考察点产生合成振动的振幅为相应各半波带所生振动振幅之和的光学屏板。
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evaluation index of safety production
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evaluation of adaptation to climate change
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evaluation of agricultural meteorology condition
evaluation of airborne magnetic measurement quality
evaluation of air quality
evaluation of aquatic products freshness
evaluation of bids
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evaluation of cold tolerance in crops
evaluation of construction and control of urban green space
evaluation of construction projects
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