The only problem is that it needs to be supremely accurate, since the margin for error on a curling shot is much smaller at altitude.

唯一的问题在于它需要无比的精确，因为在高海拔处曲球的犯错空间要小得多。

youdao

And unless they are supremely accurate, tests may misdiagnose people who aren't sick.

FORBES: Divining Disease