These chemically active ferments cause havoc.

这些化学活性的酶造成广泛损害。

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Agents controlling the metamorphism: temperature, pressure and chemically active fluid.

作用 控制因素：温度、压力和化学活动性流体。

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Zinc is a chemically active metal, but its corrosion products are generally dense and adherent.

锌是一种化学性质活泼的金属，但它的腐蚀生成物一般有高的密度和附着力。

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And it's believed that the high chemical reactivity of the surface is due to the deposition of chemically active gases from the atmosphere onto the surface, gases like hydrogen peroxide and ozone.

NPR: Revisiting the Viking Missions to Mars

It will study chemically active gases.

NPR: Revisiting the Viking Missions to Mars

These work by binding chemically to that enzyme's active site to inhibit its action. (Protease cuts the raw chain of virus protein produced by a subverted cell into functional molecules.) However, the mechanism is not quite identical.

ECONOMIST: Nanotechnology in biology