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简体中文
Haitian Creole
?????? ?????, ???, ??? ????? (???? ???????? ?? "???????? ?????"), ??? ?????? (???????? ????? ??????????) ????? ????????? ???? ??????.
?????? ??? ????? ?????? ???????? ??? ???????? ?? ???????? ???????. ???? ??????? ??? ?? ???? ????? ?? ???????? ?????? ???? ??????? (???????????<1%) ??? ?????? (?????? ?????? ???????????? ????? 5%). ??? ???????????, ??? ??? ?????? ???? ???? ??????? ???????? ??? ??? ??? ??????, ??? ?????? ???? ?? ????? ????? ????? ????????? ?????? ??? ??? ??????; ???? ???????????, ???? ??????? ????????? ???, ???? ?????? ????? ??? ???-???? (????? ??????????? ??????? ???? ????????? ???????) ????? ?????????? ?????????.
?????????????? ??? ??????????????? ???? ??????? ??? ??????? ???????
(1) Pure copper: Pure copper is often referred to as purple copper. ?? ??? ? ???? ?????????????, ??????? ?????????????, ??? ??????????? ?????????. Pure copper is represented by the letters+T}} (copper), such as Tl, T2, T3, etc. Pure copper with extremely low oxygen content, not exceeding 0.1%, is called oxygen free copper, represented by TU (copper free), such as TU1, TU2, etc.
(2) ????: ??????? ??????? ??? ????? ??? ??? ?????? ????????? ??????? ????? ?????? ????. Brass ???+H; (?????) ????????????? ???????? ??? H80, H70, H68, ??.
(3) ??????: ???????, ??? ?????? ??? ??????? ??? ??? ??? ?????? ??????, ????? ???? ??????? ????? ?????? ??? ?????? ????? ?????? ??????. ?????? ???? ????? ??? ??????, ????????? ?????? ??? ?????????? ??????. ?????? ???? "; Q，' (????) ??????.
?? ????????? ??????????? ???? ??????? ??? ??????? ??????? ?????:
(1) ????? ?? ?????????? ??? ?????????? ?? ?????????????
(2) ????? ?? ????????? ?????????? ??????
(3) Easy to produce pores
??????? ??? ??????? ?????? ???????? ????????? ??????? ??? ???????? ???????? ??? ???? ????????, ?????? ???? ??eld? ????????, ?????????????? ??? ????????, ???????, ?
??????? ??? ??????? ??????? ????? ??? ?????????? ????????vita?, ????? ??? ???? ???? ?????????? ????? ?????? ??? ??????????? ?? ????-?????????? ???????. Tungsten electrode hydrogen arc welding adopts DC positive connection. ???? ???? ????????, ???? ??? ???????? ????? ????? ?????? ????????????????????, ???? ?????? ????????????????? ??? ?????? ????? ????? ?? ??????????? ????? ?????????
