在选择缝型圆锥盘形弹簧垫圈方面需要帮助时，请与我们联系，我们将会在设计上给您提供帮助。

For help in selecting a Slotted Belleville Type Conical Disc Spring Washer, contact us and we will assist you in the design.

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我们使用面积计测量圆锥与视神经盘表面比值。

The surface ratio of conus to disc was calculated using a planimeter.

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马里兰州的州花；产自美国中部和东南部；其类似雏菊的头状花序具有黄色到橙色的边花和暗黑色圆锥状的盘花。

The state flower of maryland; of central and southeastern united states; having daisylike flowers with dark centers and yellow to orange rays.

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