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• NPSH (???? ??????? ?????? ????): ???????????? ?????? ???? ????? ???? ????? ?????? ????????? ????? ????? ??? |

6?????? ????????? |

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??????? ,,????? ???????????? ???? ????? ????????? ??????? ???? ????? ??? ??? ???????? ??????? ????? ?????, ?????????? ????? ?????????? ?????????? ???????? ???? ???? ?? ?????? ???? ??? | ??? ??????? ???? ??? ????????????? ????, ?? ??????? ?? understanding ???? ??????? |????? ????????? ??? ??? ???????????? ???? ??????? ???? ??? ????????????? ? characteristics ???????????? |????? ?????