Page 48 - البيئة والتنمية المستدامة
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????????? ??????? ????????? ??????? ?? ????? ???? ??????? ?Environmentally??
                ?? Benign chemistry?????????? ??????? ?clean chemistry??

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?????????? ( ??????? ) ?? ??????? ???? ?? ???? ???? ???????? ????? ????????

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                                ????? ??? ??? ??????? ?? ???? ??????? ?.??

                                               ??40??
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