计算这辆车的价值时，必须考虑到它的损耗情况。
When you calculate the value of the car you must allow for wear and tear.
光缆损耗计算；
最后推导出配电网损耗计算公式。
The calculation formula of distribution network loss is derived.
此外，对薄膜的损耗问题进行了探讨，找到了降低膜层内损耗的计算公式。
The wastage of the film is discussed, and the method of reducing it is found.
此外，对薄膜的损耗问题进行了探讨，找到了降低膜层内损耗的计算公式。
The wastage of the film is discussed, and the method of reducing it is found.
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