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

?硡????0635??2189598

???????13396220692??17862525099??17862512888??18963580692

?????2418524989@qq.com

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

??????????????и??????????????66??

??????λ??? ?? ? >> ??????

???3??21??????????121800C????????????????????

?????????2014/3/21

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

?????1908

???3??21??????????121800C????????????????????

?????????????????????????????????????????????????????????λ????? kg ???????????????W ???????? kg ?? = F ??????? mm2 ???? L ??????? m ??????????? g/cm3 ???? 1/1000????????? 7.85g/cm3 ??壨kg/m2??W= 7.85 ??d d= ?? ??? 4mm ???壬???m2 ???????m2 ????=7.85 ??4=31.4kg ??????????????????? ????????????

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

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

?????????????????????λ????? kg ???????????????

W ???????? kg ?? = F ??????? mm2 ???? L ??????? m ??????????? g/cm3 ???? 1/1000

????????? 7.85g/cm3
??壨kg/m2??W= 7.85 ??d d= ??

??? 4mm ???壬???m2 ???????m2 ????=7.85 ??4=31.4kg

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

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

3??1250??6000 32??
3??1800??7500 90??
4??1500??6000 32??
4??1500??8000 90??
4??1500??8000 90??
4??1800??8000 32??
5??1800??8000 21??
5??1800??8000 90??
6??1800??8000 35??

???3??21??????????12*1800*C????????????????????????

?????????? ????????????q460qe???·??????????????

?????????? ????????纣?????÷????????????????

???????????