51吃瓜

?????? ??? ??????? ?????? ?? ?????? ????? ? ?????? ??? ????? ? ???????? ?? ?? ????? ?????? ?????? ??????? ???????? ?????? ??????. ??? ?????? ? ???????? ???? ???????? ???? fiber optic fiber ???? optic fiber optic connectors, adapters optic fiber optic fiber optic fiber optic, couplers optic fiber optic etc. ???????????? ????? ?? ?????? ????? ?? ??? ?????? ?????? ??? ???. ???? ?? ??????? ????????? ????? ????? ?????: ???? ??????: ???? ?????? ?? ??????? ??????? optical ???? ?? ??? ????? ??? ?? ????? ??? ?? ?????? ????????? ???? ?? ?? ??? ????. ??? ?????? ???? ?? ??????? ?? ?????? ?????? ???? ???? ???? ????? ???. ????? ???: ????? ??? ??? ??????? ?????? ??? ??? ?? ????? ?????? ????????? ?????? ????. ???????? ??? ????? ???? ??????? ?????? ? ???? ?? ???? ???? ??? ???? ? ????? ????. ?????? ??????: ?????? ?????? ?? ????? ???????? ?????? ??? ???. For example, the refractive index, reduction and other parameters of optical fibers must meet the design requirements to ensure efficient transmission of optical signals in the fiber. ?????? ??????? ?????: ??? ???????? ?????? ???? ???? ????? ?? ?????? ??? ????? ????? ????? ??? ????? ???? ???? ?????? ??????? ??????? ? ??? ?? ??. ????????? ??? ?? ???? ?????? ?????? ????? ???? ???? ???? ???? ??? ????? ????. ??????: . ??? ?????? ?????? ???? ?????? ???? ????? ???? ?? ?????? ?????? ???? ????. ??? ??????? ?? ?????? ? ??????? ?????? ?????? ???? ????. ?????: ??? ?????? ???????? ???? ?? ???????????? ????? ????? ?? ????? ???? ?? ????? ???? ?? ???? ?? ??? ??????? ????? ?? ??? ? ???? ???? ??? ????.