逆程
- 与 逆程 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The major research objective of this thesis is to investigate the process researches which relate to near field photolithography process and inverse calculation of the probe aperture size by nondestructive method.
摘要 本文主要的研究目的在探讨近场光学微影加工制程及非破坏方法逆解光纤探针口径之相关研究。
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First, we calculate out the zero point in a simple numeral method, then we get the phase according to the fact that the symbol of phase changed is opposite in the positive-slope and the negative-slope of triangle wave. This method has the following characteristics: easy to calculate, simple to realize and high precision.
首先用简单的数值方法较准确的计算出零点时刻;进而根据三角波扫频时正程和逆程相位变化符号相反的特性,巧妙的完成了相位计算,该方法具有计算简单、实现方便、准确度高等特点。
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According to by the time series estimate power spectral density\'s periodogram law principle,the research adopts five level of orbital power spectra which US Federal railway Administrative bureau FRA proposed;then,through the Fourier inverse transformation,the orbital not smooth time domain samples are obtained, which determine the track irregularity peak-to-peak value and the corresponding wave length; on the basis of the research,the influence of the wheel track dynamic contact force are considered.Based on the orbital roadbed coefficient\'s definition,computation model is established to solve the roadbed equispaced spring constant,and the roadbed uniform spring stiffness is obtained by using the numerical simulation method.Finally,based on the Matlab procedure platform,the computational procedure is established,and the load time interval caused by the moving train acts on the roadbed is obtained.
根据由时间序列估计功率谱密度的周期图法原理,采用美国联邦铁路管理局FRA提出的五级轨道功率谱,通过Fourier逆变换得到轨道不平顺的时域样本,确定了轨道不平顺的幅值及对应的波长,以此为基础考虑轮轨动态接触力的影响;基于轨道路基系数的定义建立了求解路基均布弹簧刚度的计算模型,采用数值模拟得到了路基均布弹簧刚度;最后,基于Matlab程序平台编制了计算程序,得到了运行列车作用到路基上的荷载时程。
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Study of the multipass amplification of the chirped pulse and its inverse problem.
啁啾脉冲多程放大及其逆问题的研究。
- 推荐网络例句
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They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.
他们没有侵略性,但我大喊,并在他们的方向扔石头让他们过的线索,远离我,以防万一。
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In slot 2 in your bag put wrapping paper, quantity does not matter in this case.
在你的书包里槽2把包装纸、数量无关紧要。
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Store this product in a sealed, lightproof, dry and cool place.
密封,遮光,置阴凉干燥处。