????:1????????????:??????

2????????????

3????????

4???????

5?????

????????7????9?? ???“??????????”??,???,?????7???????????9???????12????????,??????????:

7?5???????11:00?????,???,???????????????,?300mm??????????(?,???????),???????,??

7??????????????9??3:30?????????????????,???????,???????????0.045?0.067??;5:42???,??,???????0.093?????????????????????????

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?????????????????????????,3?24?????????????,????7.901??????,?2????????,????????;

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???????,????????????????????7???622?????????????2065?????,??,??????????????????????????????

????????????????,???,????7?9?????12????????,????????121.79m,???????????????3.91?????,?1077.11????789.42???,?????????????????287.69???????????????????????0.033?,?????????????????????????,?,???,??

?????????????????????????300??????,???????????50???????????????????????(????????????)? ??????????????:??