1) critical pe rimeter
临界周长
2) perimeter
[英][pə'rɪmɪtə(r)] [美][pə'rɪmətɚ]
周长;周界
3) Critical period
临界周期
1.
Theoretical analysis for microbend critical period of optical fibers;
光纤微弯临界周期的理论分析
2.
Micro-bend optical fiber sensors are analyzed by use of the light ray tracing that the micro-bend critical period of optical fiber sensor is the space repeat distances within the fiber, through which light ray transmits at the maximum incident angle, and the result is coincident with the couple made theory analysis and experimental results.
采用光线寻迹法分析微弯光纤传感器，指出其微弯临界周期即为光线以最大入射角在光纤内传播的空间重复距离，结论与耦合模理论分析及实验结果一
4) critical length
临界长度
1.
Prediction of critical length of reinforcement for reinforced sand retaining wall by neural network;
砂土加筋挡墙筋条临界长度的神经网络预测
2.
On critical length of flexural slumping rock layer in layered rocky slope and its influencing factors;
顺倾边坡岩层滑移弯曲临界长度及其影响因素分析
3.
A critical length concept is introduced to describe the heat transfer performance of thin film flows with high Reynolds number in this investigation.
本文分析了降液膜高雷诺数区域换热系数随液膜长度变化趋势,引出临界长度的概念。
5) allowable span length
临界跨长
6) critical duct length
临界管长
1.
Considering the friction of duct wall to gas-particle flow and choking phenomena, a mathemati cal model is developed describing the behavior of gas-particle flow passing through constant area duct with friction,with a critical duct length determined by Mach checkout method.
考虑管壁对气粉两相流的摩擦阻力作用和壅塞现象建立了等截面摩擦管中气粉流的数学模型，并用马赫数检验法确定了临界管长。
2.
with Mach number checkout method used,the critical duct length is determined under conditions of choking due to friction.
采用马赫数检验法，确定了产生摩擦壅塞时的临界管长。
3.
Considering the friction choke phenomenon of gas particle flow,and using Mach number checkout method,the critical duct length of gas particle flow in combined duct has been determined.
考虑气粉流摩擦壅塞现象，用马赫数检验法确定了组合管的临界管长。
补充资料：送周长史
【诗文】：
青枫树里宣城郡，独佐诸侯上板桥。江客亦能传好信，
山僧多解说南朝。云阴出浦看帆小，草色连天见雁遥。
别有空园落桃杏，知将丝组系兰桡。
【注释】：
【出处】：
全唐诗：卷286_21
青枫树里宣城郡，独佐诸侯上板桥。江客亦能传好信，
山僧多解说南朝。云阴出浦看帆小，草色连天见雁遥。
别有空园落桃杏，知将丝组系兰桡。
【注释】：
【出处】：
全唐诗：卷286_21
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条