12 Muïc ñích cuûa böôùc tính gaàn ñuùng truïc laø 13 Khi thanh chòu löïc öùng

12 muïc ñích cuûa böôùc tính gaàn ñuùng

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.............................................................................................................................................................. .............................................................................................................................................................. .............................................................................................................................................................. 12. Muïc ñích cuûa böôùc tính gaàn ñuùng truïc laø: ...................................................................................... .............................................................................................................................................................. .............................................................................................................................................................. 13. Khi thanh chòu löïc, öùng suaát phaùp chæ xuaát hieän theo phöông song song vôùi truïc thanh laø do: ..... .............................................................................................................................................................. .............................................................................................................................................................. 14.Nguyeân lyù coäng taùc duïng ñöôïc söû duïng trong ñieàu kieän: ................................................................ ............................................................................................................................................................... .............................................................................................................................................................. .............................................................................................................................................................. 15. Baùnh raêng nghieâng coù cuøng kích thöôùc vaø vaät lieäu vôùi baùnh raêng thaúng thì coù khaû naêng chòu taûi lôùn hôn laø vì: ....................................................................................................................................... .............................................................................................................................................................. .............................................................................................................................................................. .............................................................................................................................................................. 16. Muïc ñích cuûa böôùc tính sô boä truïc laø: ................................................................. ........................... .............................................................................................................................................................. .............................................................................................................................................................. 17. Khi thanh chòu löïc, öùng suaát phaùp chæ xuaát hieän theo phöông song song vôùi truïc thanh laø do: ..... .............................................................................................................................................................. .............................................................................................................................................................. 18. Moment choáng uoán ñöôïc hình thaønh töø caùc ñaïi löôïng ................................................................... .............................................................................................................................................................. .............................................................................................................................................................. yù nghóa cuûa moment choáng uoán laø: ...................................................................................................... 19. Ta phaûi choïn chieàu daøy daây ñai phuø hôïp vôùi ñöôøng kính baùnh ñai vì: ...........................................
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.............................................................................................................................................................. .............................................................................................................................................................. .............................................................................................................................................................. 20. Thoâng soá aûnh höôûng ñeán vaän toác truyeàn cuûa boä truyeàn xích laø: ...................................... ............................................................................................................................................................ .............................................................................................................................................................. .............................................................................................................................................................. 21. Boä truyeàn baùnh raêng nghieâng ñöôïc duøng trong nhöõng tröôøng hôïp: ............................................... .............................................................................................................................................................. .............................................................................................................................................................. .............................................................................................................................................................. 22. OÅ laên coù kyù hieäu 7306 coù nghóa laø: ................................................................. ............................... .............................................................................................................................................................. .............................................................................................................................................................. 23. Khi thanh chòu löïc, öùng suaát phaùp chæ xuaát hieän theo phöông song song vôùi truïc thanh laø do: ..... .............................................................................................................................................................. .............................................................................................................................................................. 24. Nguyeân lyù coäng taùc duïng ñöôïc söû duïng trong ñieàu kieän: ............................................................... ............................................................................................................................................................... ...............................................................................................................................................................
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