质量不一的

例句：

1. 1. The products have different quality standards.
   这些产品有不同的质量标准。
2. 2. The food is of varying quality.
   食物的质量参差不齐。
3. 3. This product has a quality that varies from one batch to another.
   这个产品的质量在不同的批次之间有所不同。