请问这句话怎么理解啊？

market is equal to the replacement cost subject to replacement cost being within a specific range。

楼主有完整的上下文或者出处吗？ 半句话很难看明白什么意思。。。

这是一道题的讲解的第一句话.原题如下:

Kamp,Inc.sells specialized bicycle shoes.At year-end,due to a sudden increase in manufactruing costs,the replacement cost per pair of shors is $55.The historical is $43,and the current selling price is $50.The normal profit margin is 10%of the selling price,and the selling costs are $3 per pair.

At which of the following amounst should each pair of shoes be recorded on Kamp's year-end balancd sheet?

A $42           B $43         C $47        D$55

The answer:B Market is equal to the replacement cost subject to replacement cost being within a specific range.The upper bound is net realizable value,which is equal to selling price less selling costs for an NRV of $47.The lower bound is NRV less normal porfit for a net amount of $42.Since replacement cost is greater than NRV ,market equals NRV. Additionally,we have to use the lower of cost or market principle,so the shoes shoule be recorded at the cost of  $43.

有了这个上下文，英文的意思就非常清楚了，翻译就是：

直译：market cost 仅在replacement cost 在一定范围的时候才等于 replacement cost.

补充：如果replacement不在这个范围之内，market cost = NRV.

这道题目其实是问如何确定book-keeping的数值，我们的原则是LCM，但是Market cost 不知道，可以根据以上的原则来确定market cost，为了知道是否以上的原则可以apply，我们计算出了一个range是 42-47， 因为replacement cost是55,不在这个范围之内，所以market cost=NRV=47. 运用LCM，得出应该apply cost=43。