????
??????
?? ?? ??
??????
??? Standard
????GB/T3639
????GB/T8713
??????
????DIN2391-2
????HK15-2000
????
????? Uses
?????????????е???????豸?????????
??????
??????
????
| ?????? |
???? |
? ?? |
| ???? / ? |
BK |
????????????????????????????????к?С????? |
| ???? / ?? |
BKW |
??????????????С?????????????????????????????????????Σ????磺??????????? |
| ??????
?????????????? |
BKS |
??????????? Ac 1 ??????????????????????? |
| ??? |
GBK |
??????????????????????????е??????? |
| ???? |
NBK |
??????????????????????????е????? |
????????????1
??????????????????:[(??-???)*???]*0.02466=kg/??(????????)