The heightened accuracy allows for a more precise radiation dose and a more targeted area for treatment of the tumor.

而提高精确性之后就能使用更准确的放射剂量，并更好的对肿瘤进行定位。

The dose of testing agents must be precise.

试验药物剂量必须精确。

A decision involving tens of millions of dollars dose not have to be based on estimates that are precise down to the penny, or even to the dollar.

与数十数百万美元量有关的一个决定不需要估价到基于美分，或者甚至到美元的精确度。