There was no exceptional effect of rare earth on the foaming process.

结果表明：稀土对铝合金泡沫化无异常影响；

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This paper deals with the blending process and exceptional properties the special cable material of the polyurethane and their factors of effect.

本文论述了聚氨酯特种电缆材料的共混工艺和优异性能及其影响因素。

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It did not take exceptional levels of exposure to produce an effect - abnormalities were found in women exposed to levels below those found in a quarter of US women.

BBC: NEWS | Health | Chemicals may damage male babies