1) equivalent span length
等效跨长
2) equivalent span
等代跨长
1.
Based on the flexural rigidity of curve box girder,This paper proposes the concept of equivalent span,and transforms the space analysis of continuous curve box girder into the foree analysis of plaae structure.
根据曲梁的弯曲刚度，提出了等代跨长的概念，并将连续曲梁桥的空间分析转化为平面杆系结构的内力分析。
3) equivalent flow length
等效流长
1.
It was constructed that an optimal problem for gate locations of injection molds based on the introduction of the equivalent flow length concept.
文中通过引入等效流长的概念,建立了浇口位置优化问题。
2.
An equivalent flow length method was used to predict the filling pattern and transferred the tracing of melt front to computing weighted approximate shortest flow path on finite element mesh model.
通过对塑料熔体在型腔中流动行为的分析,基于合理的假设建立了等温条件下前峰面熔体在给定时间段内流动长度和型腔厚度的函数关系,并提出了快速预测熔体充填模式的方法,即等效流长法。
4) Equivalent length
等效长度
1.
Research on test method of resistance loss and equivalent length of valve on tube for gas
气态介质条件下阀门管件局部阻力损失与等效长度测试方法的研究
2.
The inappropriate determination of P-δ effect,equivalent length and reduction.
在指出美国规范ACI Committee 318和欧洲规范Eurocode 2对考虑P-δ效应的柱等效长度取值不尽合理以及考虑框架柱端不等偏心距影响的折减系数Cm取值过于粗略后,利用框架的有限元分析结果提出了等效长度的定义和设计取值方案,并结合试验结果和分析给出了更为合理的Cm系数取值建议。
3.
The operating principle of the thermosensitive reed switches is analyzed by introducing the concept of equivalent length.
用软磁等效长度的概念分析了温敏磁控开关的工作原理,发现温控开关滞后温度与居里点附近软磁材料磁导率~温度曲线的斜率直接相关,由此指出了温敏磁性材料的技术要求,并介绍了我公司的温敏材料的性能水平。
5) equivalent wavelength
等效波长
1.
With the conception of equivalent wavelength,the authors are albe to make better choices of arguments θ and f 0.
利用等效波长的概念对ＦＴＰ（付立叶变换轮廓术）测量方法中的参数θ与载频ｆ０进行优化选择，保证了付立叶频谱中各级谱的完全分离与系统测量精度。
2.
The equivalent wavelength is deduced and defined by considing the influence of ambient radiation, and adopted to simplify the mathematical model of temperature measurement.
考虑了环境辐射影响,基于中值定理推导并定义等效波长,用于简化测温数学模型。
6) equivalent pile length
等效桩长
补充资料：比等效百万吨数