碱液是从木炭中滤取的。

Lye is leached from wood ashes.

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为实现石棉胶乳抄取板连续化造纸法生产，对抄取板的滤水性能进行了研究。

The drainage ability of asbestos latex sheets was studied in order to realize the continuous process of the production of asbestos latex sheets.

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对确定噪声点，取滤窗内信号点的中值作为滤波输出。

We can determine the noise points through taking the median of the signal points in filter window as the filter output.

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