It not only affected the chemical signals of fertility, but it also obliterated the signals of an animal's individual identity.

它不仅影响了生育能力的化学信号，而且也截断了能显示动物个体特性的信号。

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The compressed syngas then flows over a specially designed catalyst—a solid material that holds the individual reactant molecules and preferentially encourages particular chemical reactions.

这种催化剂是一种固体物质，能够固定单个反应物分子并优先让反应物分子发生化学反应。

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Christine Drea: it not only affected the chemical signals of fertility but it also obliterated the signals of an animal's individual identity.

克里斯汀·迪亚：这不仅影响了某些能诱发多产的化学信号，也截断了某些能显示动物个体特性的信号。

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The complex at Ludwigshafen, across the Rhine from Mannheim, comprises up to 250 individual chemical factories turning out 8, 000 different products.

ECONOMIST: BASF and the chemical industry

Obama also called for "a review to ... figure out why an individual with the chemical explosive he had on him could get on a plane in Amsterdam and fly into the United States, " Gibbs said on NBC.

CNN: Obama orders review of flight screenings

There are however few economically concentrated ores of the metals and their very similar chemical properties make the separation and isolation of individual REs in pure form difficult and expensive.

FORBES: Shortage Of Rare Earth Metals Exacerbated By Smuggling