航后更换左主轮，检查正常。

Replaced L main wheel in postflight, check OK.

youdao

血尿素氮及肌酐检查正常。

The urea nitrogen and creatinine were normal.

youdao

由于症状常常不明显，可能没有发现而且实验室检查正常，容易造成诊断延误。

The diagnosis often is delayed because symptoms are often vague, fever may not be present, and laboratory studies may have normal results.

youdao

If there are less than two elements there I just check one or both of those to see if I'm looking for the right thing.

列表里是否剩余超过两个元素？,是否剩余不足两个元素,这里面我就挑一两项来检查下是否运行正常。

麻省理工公开课 - 计算机科学及编程导论课程节选