大攻角流场内部的能量主要集中在低频范围内，高频成分引起的非定常性对大攻角流动的影响较弱；
Present study on flow characteristics at high incidence shows that: energy in the flow field over slender bodies at high incidence is centralized to low frequency.
目的：应用自攻型微螺钉种植体作为支抗内收前牙，评价种植体支抗的疗效。
Conclusion:Self-tapping screw-type micro-implant could provide good control in the orthodontics treatment.
自攻螺丝的螺纹会在孔内切割出内螺纹孔，然后锁紧两块铁板。
These screws have threads that cut the hole and are made to fasten metal to metal.
自攻螺丝的螺纹会在孔内切割出内螺纹孔，然后锁紧两块铁板。
These screws have threads that cut the hole and are made to fasten metal to metal.
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