这句话要怎样翻译才好啊？谢谢各位！

How can we adjust the prescription to creat such stiffness result ?

我们应该对配方进行怎样的更改才能得到这个硬度结果啊？
how could we modify this recipe in order to gain the rigidity ？
楼上的不错，改一改就更对了
achieve指的是非同寻常的成就，事业，这儿用了不合适

How are we supposed to modify the recipe in order to achieve this rigidity results?

How should we adjust this formula to get this hardness.

How should we change the fomula to get this hardness?

what can we modify the prescription to get the? stiffniss