由于这种棘轮可以做到很大的尺寸，它可以提供一种新的方式，来从连续的流体中分离如煤灰、病毒、或是细胞碎片等固态的污染物。
Because the ratchet can be scaled to large sizes, it offers a new way to separate solid pollutants-such as soot, viruses or cell fragments-from a continuous stream of fluid.
对于复合地层受到污染的气井，地层流体的渗流规律已不符合常规解释方法的推导条件，需对分析方法进行修正。
To gas well of polluted compound formation, the percolation law of flow is already not conformity to the induced requirement of conventional interpretation way which is needed to modify.
介绍了干法清除纳米污染物的几种新方法，如超临界流体清除法、高速气凝胶清除法、激光清除法、气相化学清除法和光化学清除法。
Some new kinds of dry cleaning methods such as supercritical fluid cleaning, high pressure gas and gel cleaning, laser cleaning, gas-chemically and Photo-chemically enhanced cleaning are described.
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