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1)  Cut-off length
截止键长
2)  blocked-grid keying
栅截止键控
3)  cutoff wavelength
截止波长
1.
A practical formula to calculate the cutoff wavelength of square and rectangular coaxial lines
一种方形及矩形同轴线截止波长的实用计算公式
2.
This paper presents the theoretical formula for obtaining the cutoff wavelength of single mode fibers,investigates the relation of the fiber darwing tension with the cutoff wavelength and the mode field diameter (MFD) of the fibers and establishes relational expressions for cutoff wavelenght and MFD by numerical analysis.
本文介绍了单模光纤截止波长的理论公式,分析和探讨了拉丝张力这一工艺参数与单模光纤截止波长、模场直径之间的关系,并运用数值分析的方法建立了截止波长和模场直径的关系式,最后指出了在实际生产中,如何通过改变拉丝张力而使得截止波长在合格范围内或更加趋于合理。
3.
This paper proposes to apply finite element method to analyze main mode cutoff wavelength of asymmetrical ridge site double-ridge waveguide,and provides the field patterns under several special situations.
提出了用有限元法分析脊位置不对称双脊波导的主模截止波长,并给出了几种特殊情形下的场结构图,得到了主模截止波长分别在脊位置变化、脊宽变化及脊高变化时的变化规律。
4)  cut-off wavelength
截止波长
1.
The paper gives out the main parameters of the ridge waveguide, cut-off wavelength of the main module, the single module working band of the ridge waveguide, the characteristic impedance of the ridge waveguide, the power capacity of the ridge waveguide, the attenuation of the ridge waveguide, the completed calculation methods for the parameters and the correction curves of some parameters.
给出脊波导的主要参数 :主模截止波长、脊波导单模工作带宽、脊波导特性阻抗、脊波导功率容量、脊波导衰减 ,及各参数的完备计算方法、部分参数的修正曲
2.
The paper analyzes transmission characteristics change along with the changing curve of the ridged waveguides′dimensions,cut-off wavelength is longer along with the distance between the ridges increasing.
应用有限元分析方法计算了对称四脊矩形波导TE模式的传输特性,即截止波长和场结构图传输特性。
3.
The result shows that the content of Pt2Si in the PtSi film decreases obviously,the photocurrent of the detector is enhanced by above 50%,the cut-off wavelength is extended to 5.
用X射线衍射(XRD)分析了表面处理后的硅衬底上生长的PtSi薄膜的组分,结果表明,处理后所生长的PtSi薄膜中Pt2Si的含量明显减少,探测器光电流响应提高了50%以上,截止波长延长到5。
5)  cut off wavelength
截止波长
1.
The fiber cut off wavelength is a critical parameter for single mode fiber.
光纤截止波长是单模光纤的一个重要参数 ,它与许多因素如模场直径、长度、弯曲、衰减等有关。
2.
Based on the electrostatic field theory and transmission line theory, characteristic impedance and cut off wavelength of special section coaxial transmission lines are calculated using Finite Element Method (FEM).
应用静电场的观点和导波传输理论 ,用有限元法 (FEM)分别计算了各种复杂截面同轴线特性阻抗、截止波长。
3.
Its composition and cut off wavelength at 80K were determined by using the empirical formula.
采用傅立叶变换红外(FTIR)透射的方法测量了碲镉汞晶片在不同厚度下的透射曲线,运用经验公式确定了其组分及80K时的截止波长,并同实测的响应光谱得到的截止波长进行了比较,结果表明,采用该方法预测的截止波长同实际的截止波长相对偏差为2。
6)  long wave length cutoff
长波截止区
补充资料:共价键键长
分子式:
分子量:
CAS号:

性质:以共价键相结合的两个原子的平衡核间距离称为该共价键的键长。A、B两原子间共价键的键长可按下式计算rA-B=rA+rB-9△其中rA和rB分别为原子A和原子B的共价半径,△是A和B的电负性差。同核双原子分子的键长即两个原子的共价半径之和,当键型发生变异,例如有离域π键或其他复键时,不能再用共价单键半径计算键长。当键的性质发生变化时,键长也会变化。例如C—C键,由于成键的杂化轨道不同、超共轭效应不同,键长也不同。

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