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8.1.3
- 1. 塀 犖 F 1 犖 10 40201 犖 犖 F 10 ( 犖F ) 犖 4 15 犖 10 犖 犖 犖犖 犖 (X) 犖 犖, , F 犖 F 1. F 犖 F 犖 F 犖. F F . F 犖F F . F 犖 F F F犖 犖 . F F 2. F 犖F 犖F 1. 犖 F犖 F 犖 2. 犖 F 犖 3. F 犖 犖 F犖 F F 犖F 犖. F 1 , 2 3 . F 1,3 . F 2,3 . F 1, 2 3. 犖 犖 F 犖 F 犖 犖 1. F 1 2. F 2 3. F 3 F 犖F 犖. F 1 , 2 3 . F 1 F . F 2 F . F 3 F 4. 犖 F 犖 F F犖 犖. . . . 5. 犖 F 犖 F F犖 犖. . . .
- 2. 6. 犖 F 犖 F F 25 F F 犖犖 犖 犖 犖 犖 F 犖 37 犖. 6 . 5 . 4 . 3 7. 犖犖 犖 犖 犖 犖 500 犖 2 F F F F 犖 8 F F F 犖 6 犖 F F F 犖 F F犖 F 犖. 0.3 . 0.6 . 0.8 . 1.2 8. m F 37 犖 F F F F 犖 F 犖. 0.75 . 0.6 . 0.5 . 0.25 37 9. F F 犖 F F 犖 1.25x103 N 犖 F 5 3 1. 犖 犖 6.25x102 N 2. 犖 F F 犖 F F F F 3. F F 犖 F F 犖 0.75 F 犖F 犖. F 1 , 2 3 . F 1,3 . F 2,3 . F 1, 2 10. 犖 A B 犖 A 5 kg , B 12 kg F A B犖 F F 犖 0.8 A B犖 犖 犖 F犖 F F F A B 犖. 40 . 56 F B A . 96 . 136
- 3. 塀 犖 F 1 犖 10 犖F ( 40201 ) 犖 幣 4 犖 犖 F 10 犖F F 1 犖 2 3 4 5 6 7 8 犖 9 10