所有结果都与单一弹体的结果进行了比较，以便估价被帽材料的防护效果。

All these results are compared with the simple projectile and so the effect of protection of the cover material can be estimated.

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现随函寄上贵方所需要的电气设备、轮机以及其他材料的估价单，请查收。

We enclose herewith, as request, approximate estimates. of the electrical apparatus, turb , and other material .

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有两种可供选择的方法将用来进行结构造价的近似估价：其一是根据单位平方英尺建筑面积，另一种则是根据所用的结构材料体积进行估价。

Two alternative means will be provided for making an approximate structural cost estimate: one on a square foot of building basis, and another on volumes of structural materials used.

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