51吃瓜

?????? ?????? ????? ?? ?????? ?? ??? ????? ???? ?? ????? ???? ???? ?????? ??? ?????? ??????? ?? ??? ??? ????? ??. ?????? ?????? ?? ?????? ???? ??? ????? ????? ??? ????? ?? ???? ?? ?????: ???? ???? ?? ?????? ???? ?? ?????? ???? ?? ?????? ???? ?? ????? ??? ??? ?? ??? ?? ??? ??? ???? ???? ???? ???? ????? ???? ?? ?? ?????? ?? ???? ??? ??? ????? ????? ??? ?????? ??????? ?? ????? ?? ????? ?? ????? ??? ?????? ??????? ???? ?? ?????? ????? ???? ??? ???? ?? ???? ?? ?? ?????? ?? ????? ??. ?????? ?????? ????? ?? ?????? ??? ???? ???? ????? ???? ?? ???? ?? ?? ?????? ????? ??? (???? ?????? ???? ?? ??? ??? ??? ??????? ?????? ???? ????? ??????? ?????????? ???? ??? ?.?.)? ???? PCB ????? ??? ????? ????? (???? solder slag, solder wires, solder balls? ????) ??? ?????? ???? ????? (???? ??? ???? ?????? 3? ????? ???? ???? ????? 9332;???????? ???????? ???????? ???????? ???????? ???????? ???????? ?? ?????: ???? ?????: ????????? ???? ??? ??? ???? ??? components: environmental protection treatment, such as heavy metal recycling or harmless treatment through professional institutions ??? ???? PCB ?????? ?? ??????: · ?????? ????? ????: ??????? PCB ?????? ????? ?? ?????? PCB ???? ??? ???? ??????? ??? ????? ????? ?? ??? ??? ??? ?????? ????? ??? ???? ??? ???? ?????: ???? ?? ??? ??? PCB ???? ??? ????? ???? ?? ???? ???? ?? ??? ???? ???? ????: ?????? ??? ??? ????: ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ??? ???? ???? ?????: ??????? ?????? ?? ????? ?????? ??????? ??? ??? ??? ?????? ??????? ??? ???? ?? ???? ????: ???? ???? ?????? ?? ?????? ???? ???? ????? ???? ?? ??????? ?????? ?? ????? ?????? ???? ????? ?? ?????: ???????? ??? ??????? ?? ???? ?? ???? ??????? ????? ???? ?? ??? ????? ???? ?? ??? ?? ?????? ??????? ?? ???? ??? ?? ??????? ?? ???? ???? ???? ?????: ???? ???? ?? ??? ??? ???? ?? ??? ????? ????? ?????? ???? ?? ????? ?? ?? ???? ???? ?? ???? ???? ??. 4? ???? ?????? ??? ????? ??????? ?? ??????: (1) ????? ???? ?? ????????? ??????? ??? ?????? ?? ???? ??? ????: ????? ????? ??? ????? ?????? ?? ????????? ??? ???? ??? ?????? ???? ?? ??? ????? ?????? ?? ??????? ????? ?????? ???????? ?? ?????? ????? ?????? ?? ????? ????? ??????? ???? ???? ?????? ???????? ?? ????? ???? ?? ?????: ?????? ?? ??? ?? ?????? ?? ???? ?????? ???????? ??? ????? ?? ?????? ???? ??? ?????? ?? ???? ?????? ???????? ??? ????? ?? ????? ???? ??? ????? ?