国产+内射+后入,国产精品亚洲综合一区在线观看,国产v亚洲v欧美v精品综合,国产黄色大片,美女在线观看

Leave Your Message
????? ??????? ???????????
    ?????????? ?????????

    HMB-Ca-? ?????????? ??????

    2025-03-17

    8b1220f5-7a27-494d-a895-148727ea35ef


    ?????? 1:
    ???????? ??????? 4-?????-4-????????-2-?????????? (?????????? ??????) ??????????, ?????????? ?????, NaOBr ?????????? ????????????? ?????????????? ????????????, ????? ?????? ?????????? ?? ???????????? ??????????. HMB ????? ???????????? ?????????? ???????? ???????????? ??? Ca (OH) 2-??, ???? ?????? β - ???????? - β - ????????????? ????????. ?? ?????? ???? ????????? ?????? ?????????? ?? ??????? ?????? ???????????? ???????????.

    1. ?????? 2:
      1) ????????????? ??????????, ???????????? ?? H2O2 ????????, ????? ???????? ????????? ??????????, ???????????? ????????????? ??????;

    2. 2) 1) ????????? ??????? ???????? ??????? ?????????? ??????, ???????? ??????? ???????, ?????? ????????? ????????????, ?????? ???????? ?? ????????? 70 ℃ ???????. ??????? ??????????? ?????? ???? β - ???????? - β - ???????????? ?????? ??????;

    3. 3) ????????? ????? ?? ????????? ??????????? ?????? ??????????? ???????, ??????? ????????? 2) pH-?? ???????????????? 6.0-7.0-???. ????????? ?? ???????? ??????, ?????? ?????????. ???????? ???????? ????????? ???????, ?????? ??????? ?? ????? ???????? pH 6,5-7,0-???, ???? ??????? β - ???????? - β - ???????????? ????????. ????????? ?? ??????? ????????? ?????????