- principal: adj. 1.主要的，首要的，最重要 ...
- load: n. 1.裝載，擔子；負擔；工作(負 ...
- as principal: 做自營
- In this paper , the general situations of the model tests are outlined in brief , the spatial plate and shell finite element model is established to theoretically analyze the model bridge for the tests , the measurements of the tests under principal load cases are provided and corresponding proposals to the design and construction are made as well