双位变距螺旋桨
When taking propeller shaft joint angle measurements, or checking the phasing, of two piece shafts, consider each shaft separately.
当测量两个传动轴的工作角或检查它们是否定相时,对它们要分别考虑。
Conclusion The molar root movement controller could prevent the side effects and avoid the second molar buccally positioned movement in the process of molar propeller moving the two molars distally.
结论磨牙控根移动杆具有良好防止磨牙推进器推两个磨牙远移过程中的不利副移动作用,并能避免第二磨牙颊向错位。
The aeroacoustic field generated by a transonic two-blade Hartzell propeller was calculated by using Kirchhoff method.
本文采用Kirchhof方法计算双桨叶Hartzel跨音速螺旋桨的远场气动噪声.
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