51吃瓜

????? ???? ????? ????? ??????? ???????? ? ????? ???????? = ???? ????? ?????? ? ??? ???? ??????? ? ?????? ?????? ?? ??????? ??????? ???????? . ??? ???? ????? ??? ?????? ????? . ????? ??????? ?????? jiuding ?????? ????? ??????? ? ??? ???? ?????? ? ???? ?????? ????? ??????? ???????? ? ??? ???? ????? ????? ???? ????? ??????? ? ??? ??????? ? ???? ? ??? ???? ????? ???????? ???????? ???? ??????? ???????? ????? . ?? ??? ????? ????? ????? ??????? ???????? ? ??? ?? ???? ????? ????? ??????? ???????? ???????? ?????????? ?????? . ????????? ??? ??? ? ??? ????? ????? ??????? ???? ??? ?? ???? ?? ???????? .

????? ??????? ????? ????? ?? ????? ????? ? ????? ?????? ? ??????? ????? ? ????? ?????? ??????? ? 15-20 ? ???? ??????? . ???? ???? ???????? ??? ???? ?????? .

????? ????? ????? ??? ??? ?????? ? ??? ?? ?????? ? ???????? ????? ? ??? ??? ??? ???? ?? ???? ????? ????? ?????? ?? ???? ????? ?? ????? ?????? . ????? ?????? ????? ?????? ???? ??? ???? ????? ?????? ???????? ?? ????? = ??? ?????? * ????? ?????? * ???? ????? ?????? ?? ????? ???????? ??? ?? ???? ?? ???????? ???? ?????? ??? ?????? .

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

1 ? ???? ??? ????? ??????? = ????? ????????? ????? ???? ??????? ??????? ???????? ???????? ?????????? ?????????? : 2 ????? ?? ??????? ??????? ? 12 ???? ?? ????? ? 22 ???? ?? ????? 8 ????? . ??? ???? ?????? ? 200 ? 000 ???? ?? ?????? = 20 * 10 ? 000 / 2 / 12 / 22 / 8 = 47.4 ???? / ???? ????? ???? ??????? : ?? ???? ????? ??? ????? ?? ???????? ? ???? ???? . ?????? ????????? ?? ????? ????? . ????? ????? ?????? ??? ??? = 5400 ???? ???? 8 ????? ?? ????? ???? 22 ???? ? ?? ????? ?? ???? = 5400 * 3 / 22 / 8 = 93 ???? / ????

????? ?????? ???????? : ????? 2000 ???? ????? ??? ??? ????? ???? 22 ???? ? 8 ????? ?? ????? ? ??????? = 2000 / 22 / 8 = 11.4 ???? / ????

3 - ????? ????? ???????? ??????? : ?? ?? ????? = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = ??????? ???? ? ??? ????? ????? ????? 6 ~ 12 ???? / ??? ???? : 6000 ???? / ??? ?? ????? ? 22 ???? ?? ????? ? 8 ????? ? ????? 30 ??? ???? ?? ?????? . ????? ????? = 6000 / 22 / 8 / 30 = 1.14 ???? / ???? ?? ?????? ???????? : ???????? ??????? ? ???????? ? ??? ???????? ?????? ?? ?????? ???????? ????? 50 ? 000 ???? ? 22 ???? ?? ????? 30 ??? ???? ?? ?????? 8 ????? ?? ???? . ??? ????? ?????? ???????? = 50 ? 000 / 22 / 8 / 30 = 9.47 ???? / ???? ? ????? ????? ???? ????? 10.6 ???? / ??? ???? ? ?? ????? ??? ????? ????? .

???? ??????? ????????

???? ??????? ???????? ????? ???? ??????? ???????? ??????? ???? ??????? . ??? ??? ?????? ? ????? ??????? ???????? ???????? ? ????? ????? ???? ? ????? 20-30 ???? / ??? ???? 5 ? ???? ????? ????? ???? ????? ??? ???? ??????? ? ????? ?? ???? ??? ?????? .

?????? - ????????? ????????

???????? ???????? ????? ??? ????? : ??????? ???? ?????? ????????? ???????? ??????? . ??????? ???????? ???? ?? ???? ????? 10 ? ?? ?????? ??? ????? .