With the different conditions, reasonably selecting the material, length, diameter and taper of ahead or back blind flange can realize the broadband optimization.
在不同的条件下，通过选择合理的前后盖板材料、长度、直径、锥度，可使换能器的频带宽度得到优化。
2
This is because most men prefer to have some taper in the length of their hair, especially in the back and sides.
这是因为大部分男性更青睐一些寸头长度的头发，特别是在后方和侧面的头发。
3
Described in this paper are the effects of the aspect ratio, the swept-back, the taper ratio and the profile of the ship rudder on its hydrodynamic performance by a test method of orthogonality.