According to the aerodynamic noise analysis of cross flow fans, investigates the mechanism of reducing noise due to the adoption of non-isometric impellers.

根据对贯流风机气动噪声的分析，研究了采用不等距叶轮的降噪机理。

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And the axial force of soil nail in the slope with isometric soil nailing supporting was slightly greater than that in the slope with non-isometric soil nailing supporting.

不等长土钉支护边坡中的土钉轴力总体上要比等长土钉支护边坡稍小。

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And the axial force of soil nail in the slope with isometric soil nailing supporting was slightly greater than that in the slope with non-isometric soil nailing supporting.

不等长土钉支护边坡中的土钉轴力总体上要比等长土钉支护边坡稍小。

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