对于不同渐变过渡段长度，其最佳楔形凹槽深度由实验试凑法得到。
The optimal depths of the wedge-shaped notch for different tapered transition lengths have been determined by trial and error.
对于不同渐变过渡段长度，其最佳楔形凹槽深度由实验试凑法得到。
The optimal depths of the wedge-shaped notch for different tapered transition lengths have been determined by trial and error.
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