然后基于实验研究，并结合三维全波电磁仿真软件在频域和时域对通孔结构性能进行分析。

And then, based on experiments and combined with three-dimensional full-wave electromagnetic simulation software, the frequency domain and time domain performance of the through-hole via is analyzed.

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全通径结构保证通道内径与管线内径一致，不但使流体阻力最小，也便于清洁通道。

Full diameter structure of ball valve ensures the conformity of inside diameter of passage and pipeline, with the fluid resistance minimized and easy for cleaning pipeline.

youdao

全通径结构保证通道内径与管线内径一致，不但使流体阻力最小，也便于清洁通道。

Full diameter structure of ball valve ensures the conformity of inside diameter of passage and pipeline, with the fluid resistance minimized and easy for cleaning pipeline.

youdao