凹地带 hollow zone 地带、地区 zona; zone ..
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The experimental result shows that the hollow beam generated from the Fresnel Zone Plate based on a TFT-LCD has the advantages of real-time adjustability, simplicity and accuracy.
实验结果表明，基于TFT - LCD的菲涅尔波带片生成的中空光束具有实时可调、快捷和精确等优点。
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