Modeling Comments
注释建模
The most common purpose for which you’ll use notes is to write down free-form observations, reviews, or explanations. By putting these comments directly in your models, your models can become a common repository for all the disparate artifacts you’ll create during development. You can even use notes to visualize requirements and show how they tie explicitly to the parts of your model.
使用备注的最多见目的是写下自由格式的视察结果