chief composition series

例句：

1. 1. This is the main composition series of our company's new product line.
   这是我们公司新产品线的主要组成系列。
2. 2. The main composition series includes various materials and components for assembly.
   主要组成系列包括用于装配的各种材料和组件。
3. 3. The chief composition series is responsible for ensuring the quality and consistency of the products.
   主要组成系列负责确保产品的质量与一致性。