这些公式在形式上符合设计者的习惯，且考虑了板托的影响，计算精度优于换算截面法。

These formulas accord with the designer's habit in the form and consider the influence of the concrete haunch.

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主要产品有家具螺丝，欧洲螺丝，方颈螺栓太阳能专用不锈钢螺丝，双头螺栓，板托等各种非标件。

The main products are Confirmat screw, European screw, Square neck screw, Shelf support, and so on.

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Xunlight公司是一家太阳板制造商，坐落于托莱多一条静谧的街道上。

XUNLIGHT CORPORATION, a small manufacturer of solar panels, sits on a quiet street in Toledo.

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