maintain the angle 保持角度
Metal blades are best because they will maintain a consistent edge and print Angle.
最好采用金属叶片,因为它能保持均匀的边缘和印刷角度。
In most flight conditions it is desired to maintain the sideslip Angle equal to zero.
大多数飞行状态都要求保持侧滑角等于零。
Additionally, insure that both Seat Tube and Forward Tube maintain a perfect right Angle to the fixture base.
此外,确保这两个座管和前进管维持一个完美的直角夹具基地的可能。
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