This article describes the design, characteristics, technical level and development of the product.

本文介绍了该产品的方案设计、技术特征、技术水平及研制开发情况。

youdao

This article describes the design, characteristics, technical level and development of the product.

本文介绍了该产品的方案设计、技术特征、技术水平及研制开发情况。

youdao