有效断面 meaning in English
active cross-section
effective section
useful cross section
Examples
- Research on algorithm to solve virtual section in ultrasonic wells measure
超声测井中有效断面求解的算法研究 - Reinforced concrete structure under the condition of the abnormal heat ( over 200 ) , its strength will become lower ; concrete surface will fall off ; useful - area decreases and the component will be deformed in different level
摘要钢筋混凝土框架结构受非正常高温后（超过200 ） ，混凝土将出现强度降低，混凝土表面脱落，有效断面减小，构件会出现不同程度变形。