improvement advice

• 改进建议

improvement advice的用法和样例：

例句

1. They presented concrete proposals for improvement.
   他们提出了具体的改进建议。
2. At last, the improvement suggestion to the mirror subassembly is proposed, and the error source of the calculation is analyzed.
   最后给出了反射镜组件结构的改进建议和分析计算的误差来源。