standard indicator with a unit expressed in kind

例句：

1. 1. The standard of thecompany is high.
   公司的标准很高。
2. 2. This isa standard textbook for beginners.
   这是一本适合初学者的标准教科书。
3. 3. Standards are setto ensure quality and safety in the industry.
   设定标准是为了确保该行业的质量与安全。