多少的贯穿孔与引脚比例是最佳的通孔填充？

What pin to hole ratio gives the best hole filling?

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制备了三维有序大孔填充的有机-无机杂化质子交换膜。

Second, we prepared the pore-filling organic-inorganic hybrid proton exchange membranes.

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该通道有4000孔填充的小管，它允许水通过而形成一个滴滤，形成垂直水屏幕。

The base of the covered triangular channel is perforated with 4000 holes filled with small pipes, which let water pour through to form a vertical screen of water.

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