The solid particles were filtered from the solution.

固体颗粒从溶液中过滤出来。

《新英汉大辞典》

Each of the membrane technologies is essentially a filtration process in which contaminant ions are filtered from solution using a membrane with very small water passages.

这些膜技术本质上都是一个过滤程序，就是用一个有非常细小水通道的膜片把污染物离子从溶液里过滤掉。

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To help describe how you can improve the process, Figure 1 shows a typical spam filtering solution where the e-mail is filtered as it comes in, and the e-mail is delivered into individual mailboxes.

为了帮助描述如何改进这个过程， 图 1 显示了一个典型的垃圾邮件过滤解决方案，在该方案中，在电子邮件进入时对其进行过滤，然后将电子邮件发送到不同的邮箱中。

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