遵守实验室内对水、电、汽等公用设施的使用规定。

By following the usage instruction of facilities of water, electricity and steam etc. in lab.

youdao

这个规定也已经用于购买使用过的轮胎和内胎。

This rule has also been applied in the case of a purchase of used tyres and tubes.

《柯林斯英汉双解大词典》

新规定给仍在使用老式工业燃煤燃烧器的公司带来了巨大的合规成本。

New regulations have imposed extensive compliance costs on companies still using older industrial coal-fired burners.

youdao

Convention, OK, this negative sign is just a pure convention. You just got to use it all the time. If you use an old textbook, written when I was taking thermodynamics, they have the opposite convention, and it's very confusing. But now we've all agreed on this convention, and work is going to be with the negative sign here.

系统对外界做功的符号为负,这就是我们,在本课中的规定，纯粹出于统一符号的需要，有些教科书中，可能会使用相反的符号规定,注意不要混淆了，这门课上,我们将一直使用。

麻省理工公开课 - 热力学与动力学课程节选