Before applying a given diagnostic test the user should ascertain that the chosen test would indeed help decide whether the patient has a particular target condition.

在使用诊断性实验之前，医生应该明确所选择的实验是否有助于判定患者存在某种情况。

youdao

This paper also mentions several major factors in selecting above means such as the target, condition, and object of evaluation.

影响方法选择的因素主要包括：评估目标、评估条件和评估对象。

youdao

Although this is a non-binding target, it is likely to become a condition for preparing to push the increase through this autumn.

CNN: Bank of Japan bows to inflation pressure

Earlier on Tuesday, doctors said US Congresswoman Gabrielle Giffords, the Arizona Democrat who was the intended target of the shooting, was still in critical condition in hospital but was capable of breathing on her own.

BBC: Bill Clinton: Politics must change after Arizona attack

When the result is transformed back into its original condition, the only light remaining marks the position of the target, or things that looked similar to it, in the original image.

ECONOMIST: Optical recognition