The results indicate that reactive ingredient of the paint penetrated into the internal part of concrete reacts with cement matrix to produce insoluble needle-like crystal.

结果表明，涂料的活性化学物质渗透进入混凝土内部，与混凝土基体发生化学作用生成不溶针状晶体。

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Federal officials have also issued recent warnings about lead paint in toy trains, defective tires and toothpaste made with diethylene glycol, a toxic ingredient commonly found in antifreeze.

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