Conduct a preventative maintenance inspection on a monthly basis.

每月进行预防性维修检查。

youdao

Conduct a preventative engineering maintenance inspection on a monthly basis.

管理预防工程问题每月进行检查。

youdao

Conduct a preventative maintenance inspection on a weekly basis with appropriate documentation.

以每周的方式以适当的文件引导一次预防的维护检验。

youdao

Efforts to improve international regulations regarding the certification, inspection and maintenance of aircraft environmental control systems are needed.

CNN: Commentary: Flu and your health on a plane

They have a statutory defence and that is they have to be seen to carry out a reasonable system of inspection and maintenance.

BBC: Stoke & Staffordshire

Inspection and maintenance had been questionable.

ECONOMIST: Canada: Hyper Hydro | The