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2023-02-25

2023-02-25

 

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?????? ???? ?????? ????? 1500 ??? ?????? ????? 60 ???? ???? (Pa) ?? ?????? ????? ?????? ???? ???? 1000 ??? ????? 47 ???? ???? (Pa)/ ??????. ?? ?????? ?????? ?? ??? ??????? ????? ??? ????? ???? ??? ?????? ???? ???? ??????? ??? ??? ???? ???????? ?? ????? ???? ???? ?? ??? ??? ??? ??? ??? ??? ???.

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  • ?????? ???? ?????? ????? ?? 100 ??? ??? ?????? ????????
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  • ?????? ?????? ???????? 1/10 ????? (0.1 ?????) ??? ????? ?????? ??????? 120 ???? ????? ????? ?????? ??????? ???? ??????? ?? ??? 1/10 ? 1/100 ????? ???? ??? ???? ???????? ???? ?????????

??? ???? ?????? ??? ?? ???? ?? ????? ???????? ???? ???? ?? ?????? ????? ????? ???? ??????? ????? ?????? ???? ?? ?? "????" ?????? 10 ????? ??? ?????? ??????? ? 0.1 ????? x 60 ???? = 6 ????? x 10 ????? = 60 ??? x 100 ????? = 6 ??????? ???? ???? ?????. ??? ???? ???? ??? ??? ??? ???? ????? ????? ??? 75 ???? ??? ???? ?????? ????? ?? ??? ???? ???????? ??? ??? ??? ???? ??????? ??? - ???? ???? ???? ?? ??????? ?? ?????? 5 ????? ??? ???? ??????? ????? ?? ??? ??????!

??? ??? ???? ?????? ????? ?? ?????? ?????? ????? ???? ???? ??? ???? ????? ????? ?? ??????? ?? ?????? 200 ???. ??? ??? ?????? ?? ????? ?????? ?????????? ???? ???????? ???? ???? ????? ??????? ???? ???? ??? ?? ???? ??? ???????? ???? ??????? ?? ??? ???????? ??? 1000.

 

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????? ???? ?????? ????? ????? ???? ???? - ?????? ?????? ???? ??? ?? ???? ????.

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????? ???? ??? ??????, ????????, ????? ? ?????? ?????? ??? ??? ??????? ?????? LETOU - 乐投 ??????????.

 

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