standard amounts

例句：

1. 1.The standard for measuring the length of a ruler is 20 cm.
   测量尺子长度的标准是20厘米。
2. 2. The company has set strict standards for its employees.
   该公司对员工设定了严格的标准。
3. 3. The new product meets the industry's standard for quality.
   新产品符合行业的质量标准。