如何使用 "volute" 造句

1. " In volute cylindrical gear , external gearing , large modulus "
渐开线圆柱齿轮外啮合大模数
2. " In volute cylindrical gear , external gearing , minor modulus "
渐开线圆柱齿轮外啮合小模数
3. This paper mainly researches the change principle of the volute section configuration , the volute section area and the diffuser . Based on the research , an improved program is put forward .
本文对蜗壳截面形状、蜗壳截面面积变化规律以及扩压器等方面进行研究,提出了改进方案。