51吃瓜

?? ?????? ??????? ?? ????? ????? ??? ??????? ???? ????? ???? ?????? ????? ???? ???? ?????. ???? ????? ???? ????? ?????? ??? ?????? ????? ?????? ????? ? ??? ?? ????? ?????:

?. ???????? ???? ? ?????:

?? ????? ????? ??????? ?? ?? ??? ????????? ?? ???????? ?? ???? ???? ???? ???? ??????? ???? ?? ?? ????? ???? ??? ?? ?? ???? ???? ?????. ?????? ?? ????????? ?????????? ???? ??????? ?????? ?? ??? ?? ????? ?? ???? ???? ? ??? ???? ???? ???? ?? ??? ???? ?? ????? ???? ??????? ??????. ?? ??? ?????? ???? ????? ????????? ??? ???? ???? ?????????? ??? ???? ????:

??? ????? - ??? ?? ??? ??? ?????? ?? ??? ?? ???? ???? ????? ?? ???? ? ??? ???? ????? ?? ???? ???? ?? ????? ?????? ?? ???? ??? ???? ????? ?? ????? ?? ???. ?????? ????? ????? ?? ????? ???? ?????? ????? ? ????? ????? ???? ???? ???? ?? ????? ???? ???. ????????? ???? ???????? ???????? ????? ????? ???? ?????? ??? ? ?? ??? ???? ? ???? ??????? ?? ???????? ?? ??????? ???? ?????? ???? ????? ????. ???? ?? ???? ??? ??????? ??????. ?? addition, due to the same oxygen pressure used for perforation as during cutting, there is a larger splash.

???? ???? - ?? ??????? ?? ??? ???? ???? ????? ???? ?? ?? ????? ???? ???? ?? ?? ? ???? ???? ??????? ?? ??? ?? ??????? ?? ????? ??? ??? ???? ???? ????? ????? ?? ??? ????? ??????? ? ???? ??? ?? ???? ???? ?? ???? ?????? ????? ???. ?? ??? ???? ??? ?? ???? ???? ?? ????? ?? ??? ?? ?? ????? ???? ?? ???? ?? ???? ???????? ???? ????? ???? ???? ??? ??????? ??? ????? ??? ?? ???. Once the perforation is completed, immediately replace the assistant gas with oxygen for cutting. ?? ??? ????? ????? ??????? ?????? ??? ? ????? ??????? ???? ?? ??????? ??????? ???. ??? ?? ???? ??? ??????? ?????? ????? ??? ???? ????? ???? ????? ????. ????? ?? ???? ????????? ????? ? ????? ?????? ??? ???? ???????? ??????? ???? CO2 transverse ????????? ????????? ?? ??? ???? ?? ???? ???. ?? addition, perforation pulse requires a reliable gas control system to achieve switching of gas types and pressures, as well as control of perforation time.

?? ???? ??????? ?? ????? ????? ???? ????? ????????? ????? ????? ???????? ????? ?? ????? ???? ???? ???????? ??? ?? ???? ?????? ????? ???????? ??? ???? ??? ?????. ?? ?????? ??????? ???? ??? ????? ??? ???? ???? ???? ?? ????? ????? ??? ??? ?????? ?????? ????? ???? ???? ? ??? ?? ??? ??? ?? ????? ?????? ????? ??? ????? ?? ???? ???? ????? ????. ?? ????? ?????? ??????? ??? ?? ?? ??? ?? ??? ????? ???? ????? ???? ??????? ???? ?????? ?? ????? ?????? ????. ?????? ???? ?? ????? ????; ?????? ????? ??? ? ?????? ???? ???. ????? ????? ???? ?? ??? ?? ??? ??? ???? ??? ????? ???.

2. ????? ??????? ????????? ???? (????? ???? ? ?????) ?? ???? ????? ? ??????:

??? ?? ???? ??? ??? ?? ???????? ????? (??? ???? ????????? ??? ???? ????) ???? ????? ???? ?? ?????? ??????? ???????? ????????? ??????? ????????? ???? ?? ???????? ???? ??????? ??????? (????? ???) ?? ????? ???? ?? ?? ?? ????? ???? ????? ????? ??????? ????? ??????????????? ??? ?? ??? ????? ?? ???? ??? ????? ????? ???? (??? ????? ???) ?? ?? ??? ????? ????? ???? ?? ???? ?? ?? ????. ???? ????????? ??? ??? ??????? ????? ????? ???. ????? ?? ?? ??? ?????? ????? ???????? ?????? ???? ???? ???? ????? ?? ??????? ???? ??? ??????? ???.

?????? ????? ?? ??????? ????? ??? ???. ??? ????? ?????? ???? ?? ?? ???? ?????? ?? ?? ?? ??? ????!