Blocking is the inherent nature in any filtration process.
堵塞是任何过滤过程的固有本性。
Features of brine refinement process and secondary filtration process in Wuhan Gehua Group co.
介绍了武汉葛化集团有限公司盐水精制及二次过滤工艺的特点。
So he wondered why that natural filtration process does not remove nitrates from the Mississippi River.
所以他想弄明白,为什么自然过滤过程未能去除密西西比河的硝酸盐。
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