second harmonic
第二谐波：在波动现象中
常用释义
英式发音
美式发音
基本释义
- 第二谐波：在波动现象中，频率是原始波频率的两倍的波。
例句
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1·The optimized KTP was used for second harmonic generation(SHG) in CW laser.本文利用改性KTP晶体，进行了纯连续激光倍频实验。
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2·Some examples are discussed for second harmonic heating as well as the minority heating.最后讨论了二次谐波加热和少数成份离子加热的实例。
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3·Objective To discuss the value of second harmonic imaging in diagnosing pancreatic masses.目的探讨二次谐波技术对胰腺肿块的诊断价值。
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4·We have also discussed the effect of the beam divergence on the second harmonic conversion efficiency.还讨论了泵浦束的发散角对二次谐波转换效率的影响。
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5·The optical second harmonic signal was observed using a ND:YAG laser, The mechanism of SHG was discussed.在Nd：YAG强激光光场的作用下，薄膜样品中观察到二次谐波信号，并分析了二次谐波发生的机理。
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6·Objective To investigate the application of SonoVuecontrast-enhanced ultrasound and second harmonic imaging in liver hemangioma.目的探讨超声造影二次谐波成像技术在肝血管瘤中的应用。
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7·Superharmonic imaging is made for biological tissues and compared with the results from fundamental and second harmonic imaging.对生物组织进行了超谐波成像，并与基波、二次谐波图像对比。
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8·Photon energies of the whole range were calibrated using the second harmonic for high energies and the fermi edge of gold for low energies.利用纯金样品的二次谐波和费米边分别对高能和低能部分的入射光子能量进行了标定，并给出了系统的能量分辨率。
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9·By using coupled-mode equation, the formula for conversion efficiency of Cerenkov second harmonic generation (CSHG) is deduced in this paper.从耦合模方程出发，推导了切伦科夫倍频转换效率公式，并得出该效率主要是由交叠积分决定的结论；
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10·Methods Observation were done in 30 old patients who successfully underwent myocardial contrast imaging using second harmonic imaging technology.方法对行超声二次谐波心肌造影的30例患者进行观察。