13С??

??????????????????Щ???????

1.??

??????????????????С??????θ???üθ??θ壬θ???(??Χε?￡)

2.??

??????????С???800~1000?1С???1000?μ??

3.????

???????????????????????????????????ζ?????

4.???

??????????????60%仰?????????????e??С????????????

5.????

???????????e?????o???????Ч???÷?п?????

6.????

?????????????е?????·???????沿?????

7.??

?????????????????????л??????????Ч??ке????еá

8.???

????Щ??Ч?????????????Ч??????????????

9.?????

??μ???80%????????????к???

10.??е?

??е??????Σ?е?屣???25%~35%???????У???

11.?

??90??Ρ????????90???3040????ζ?

12.?????

???????????????????90??????y????????裬????????

13.??к?

??洦???????????????????