不准确，失去准确性to be inaccurate

• 秤具管理混乱、失准严重。

  The management of weighing tools is chaotic, and they have become seriously inaccurate.

• 认识上的偏颇，导致工作上的失准。

  A biased understanding has caused inaccuracies in the work.

有失水准，没有发挥正常水平to be unable to operate at one's normal level