更新时间：2026-07-07 23:45:53
principal beam
principal beam是什么意思？
主梁
- 单词
- principal beam
主梁
- principal strain direction
- principal
- principal synoptic station
- principality
- Principal characteristics
- principal point refraction
- principal - agent theory
- principal stress direction
- principal square submatrix
- principal value of radical
- principal climatic factors
- principal image components
principal beam是什么意思 principal beam在线翻译 principal beam什么意思 principal beam的意思 principal beam的翻译 principal beam的解释 principal beam的发音 principal beam的同义词