All - dielectric multi - cavity filter : high transmittance of the peak, well - rectangularity, deep cut - off spectrum .
全介質(zhì) 多腔 濾光片,峰值透過率高, 矩形化好, 截止深.
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The key issue in large tower device fabrication is to guarantee the linearity, rectangularity and parallel.
如何保證超長容器的“三度”,即直線度 、 垂直度和平行度,是制造大型塔器的關(guān)鍵問題.
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