呃，谁给讲下这题什么意思啊？ TTGWD2-Q17 感谢！！！

airsty

Tanco,a leather manufacturer, uses largequantities of common salt to preserve animal hides.  New environmental regulations havesignificantly increased the cost of disposing of salt water that results fromthis use, and, in consequence, Tanco is considering a plan to use potassiumchloride in place of common salt. Research has shown that Tanco could reprocess the by-product ofpotassium chloride use to yield a crop fertilizer, leaving a relatively smallvolume of waste for disposal.
Indetermining the impact on company profits of using potassium chloride in placeof common salt, it would be important for Tanco to research all of thefollowing EXCEPT:重點在the impact oncompany profits

1. What     difference, if any, is there between the cost of the common salt needed to     preserve a given quantity of animal hides and the cost of the potassium     chloride needed to preserve the same quantity of hides?
   

To     what extent is the equipment involved in preserving animal hides using     common salt suitable for preserving animal hides using potassium chloride?

What     environmental regulations, if any, constrain the disposal of the waste     generated in reprocessing the by-product of potassium chloride?

How     closely does leather that results when common salt is used to preserve     hides resemble that which results when potassium chloride is used?

Are     the chemical properties that make potassium chloride an effective means     for preserving animal hides the same as those that make common salt an     effective means for doing so?無關chemical properties make an     effective means

naoyixue

T ，一个皮毛商， 用食盐来保存动物皮毛。 新的环境保护大量增加了倾倒由于用食盐保护皮毛而产生的废水的成本。从而T,开始计划用P来代替食盐（就是用P来保护动物皮毛）相关研究已经被表明T能重新处理P的附产品，使附产品成为植物肥料，但是却产生很少的废水
在决定是否用P来代替食盐，那么很重要的对于T来说是要考虑下面的东西除了？
1：用原来食盐保护皮毛的机器能多少程度上适合用P来保护皮毛
2：啥环境规定，如果有的话，限制那些由于重新处理P而产生的废水 （就算知道规定的名字，没有用）
3：用食盐和用P来保护的皮毛最终是否很相像
4：用P是否和用食盐一样有效来保护皮毛