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2???????????

3?????

4?????98?

5?????????

?????,?,???????19??????8????,?(??187.2????????????)????????????3.61???????,??????????(?146.0??)?????????(?210.5?)?????0.42~0.77???????,????1????,???

??3????25?????

??(?????146.0?????????)???(?????99.5???????????)??2~3?;

???????????????????(187.2?????????)4?????????????????;

?????????????(????150.5????)?????????????0.5~1?;

??(155.6?)??(139.0???????)????(139.0??????????????)?0.5~2??;

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