求翻译：They were used in amounts containing nitrogens equivalent to 1, 2 and 4* the calculated amounts of primary nitrogens in PEI是什么意思？

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They were used in amounts containing nitrogens equivalent to 1*, 2* and 4* the calculated amounts of primary nitrogens in PEI

问题补充：

匿名	2013-05-23 12:21:38 他们在含有氮相当于1的量使用* ， 2 * 和4 *在裴伯氮的计算量

匿名	2013-05-23 12:23:18 正在翻译，请等待...

匿名	2013-05-23 12:24:58 他们用于包含nitrogens的数额等效与1， 2和4*故意的相当数量主要nitrogens在PEI

匿名	2013-05-23 12:26:38 他们使用了数额包含源等效于 1 、 2  和 4 * 的主源在裴中计算出的金额

匿名	2013-05-23 12:28:18 正在翻译，请等待...

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求翻译：They were used in amounts containing nitrogens equivalent to 1*, 2* and 4* the calculated amounts of primary nitrogens in PEI是什么意思？