rectangularity

The key issue in large tower device fabrication is to guarantee the linearity, rectangularity and parallel.

如何保证超长容器的“三度”,即直线度 、 垂直度和平行度,是制造大型塔器的关键问题.

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All - dielectric multi - cavity filter : high transmittance of the peak, well - rectangularity, deep cut - off spectrum .

全介质 多腔 滤光片,峰值透过率高, 矩形化好, 截止深.

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