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

2?????800

3??????????

4?qq????????

5??????

1?????????????17??????????????????,????(??“????????”)???????????????????????????????????,???????????,???????????????2000??

????,????????????????,????“????”,?,?,???????????,????

??????????????,?????????2000??,???????10000psi(??),???????690???,???46?,??????30?????????????????????,?????????????????????????????(???? ??????????????????:?????????)

????:??????????