????:1?????200????:????92,95,98

2???????

3?????vx

4??????????

5????????????

?10?????30????????????????? (????????????? ????????????)???????????????????10?????30???,??????????????????“?????”??????,??,??????

???????????????????,???????«????????»?

??:a.??????;b.??????;c.??????????;d.???????????????????????????????/???????????

?,????,??L605???????,????????,???????????????L605?2?????????,??????????????????????????,??????????????????????????,???

??,??“??????????????????????”?????,??/????????????????,???????????????????????????????????,???,????????,?????????????750??????????(MPa)???1000MPa????????,?????????????50%,??????????????L605??????????

??“???”????(FeN)??????????,????????,???????????????????,??????????(??,NH3)???????,?????,??60%??????????????????????,?????

??????????????????????,?????????,??:?????,??????????????????????????????????????????????(?????)

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