The product is well-developed pore structure, surface area, adsorption, high mechanical strength, bed resistance, chemical stability, easy regeneration.

该产品价格孔隙结构发达、比表面积大，吸附性能、机械强度高、床层阻力小、化学性能稳定，易再生。

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The precisions of 23 movable-bed resistance equations, which contain the equations of this paper, have been compared by using near 10000 sets of measured data.

利用近10000组资料，比较了包含本文公式在内的23种动床阻力计算公式，在已知流量、能坡和泥沙粒径时预测水深的计算精度。

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Have in the use of easy to operate, clean and high bed resistance, adaptability, and some organic sulfur from hydrogen sulfide faster, higher-capacity characteristics.

在使用上具有操作方便、净化度高、床层阻力小、适应性强、脱硫化氢及部分有机硫的速度快、容量高等特点。

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Studying 21 populations of insects, which had been collected from infested apartments close to the university, the team discovered that the genes associated with resistance to pyrethroids were located in the bed bugs' tough outer shell.

BBC: Bed bugs 'dodge insecticides' with molecular tricks

These could bypass the bed bugs' molecular armoury or work by interfering with the genes associated with insecticide resistance.

BBC: Bed bugs 'dodge insecticides' with molecular tricks