In the KDF filter, effect of contact reaction time, filter bed height, and filtering velocity on lead and mercury removal was studied.

以KDF为滤料，研究了接触反应时间、滤层高度和滤速对铅和汞去除效果的影响。

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The result shows that selection of suitable contact reaction time, filter bed height, and filtering velocity may result in efficient removal of lead and mercury.

结果表明，选择合理的接触反应时间、滤层高度和滤速能有效去除微污染原水中的铅和汞。

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I'll contact Jenny and get her reaction.

我将与珍妮联系，看看她的反应如何。

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Forbes tried to contact Santa to get his reaction to the report, but he was unavailable to comment due to public appearance commitments at more than a million shopping malls, simultaneously.

FORBES: Santa Told To Slim Down, CLSA Reports

Mr Phillip Marshall, the barrister representing Ms Dugmore, said that, despite her replacement gloves, it had been enough for her to come into contact with colleagues wearing latex ones to trigger a reaction.

BBC: Appeal over hospital glove allergy claim

When the agent made contact with a catalyst embedded in the material, a chemical reaction bonded the two faces of the crack together.

BBC: Time to heal: The materials that repair themselves