片语

second tissue harmonic imaging二次组织谐波成像

second-harmonic effect二次谐波效应

second-harmonic compensation二次谐波补偿

second-harmonic signal二次谐波信号

spacial second-harmonic空间二次谐波

second-harmonic conversion二次谐波转换

second-harmonic resonance谐

second-harmonic power二次谐波功率

英汉例句

• However, the multiplicative noise can enhance the fluctuation of fundamental light, meanwhile it can reduce the fluctuation of the second harmonic light.

  当激光场中含有乘性噪声时，乘性噪声能增强基波的涨落，同时抑制二次谐波的涨落。

• 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。

• 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。

• Objective: to have an acoustic densitometry (AD) analysis about the relationship between doses and effects in experiment rabbit liver with second harmonic contrast imaging.

  目的：利用实验性兔肝对二次谐波成像中的剂量-效应关系进行声学定量分析。

• 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。

• 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。

• The results show that group-velocity mismatching is the main reason of the broadening of the second harmonic pulse and could lead to the decrement of conversion efficiency.

  研究结果表明，群速度失配会导致二倍频光脉沖宽度的增大和转换效率的降低，非线性相位调制使二倍频光脉沖形状发生畸变，降低转换效率。

• Methods:6 normal dogs were imaged with fundamental and second harmonic imaging technics after intravenously injection of the new contrast agent.

  方法：6 只健康杂种犬经外周静脉注射相同剂量的氟碳声学造影剂，分别用二次谐波和基波显像扫描肝脏。

• This paper presents a new control strategy to eliminate second harmonic of dc output current in the 3-phase unbalanced network voltage PWM current-source converters (CSC).

  提出一种电网电压不对称情况下抑制三相脉宽调制(PWM)电流型变流器(CSC)直流输出电流二次谐波、减少网侧电流低次谐波的控制方法。

• 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。

• Synthesises eighteen kinds of cinnamylidene acetophenone derivatives and discusses their properties of IR, UV, photoacoustic spectrum , X ray diffraction and second harmonic generation (SHG).

  合成了十八个二苯基戊二烯酮类化合物，并对其进行了一系列性质测试，包括红外、紫外、核磁共振、粉末X衍射、光声光谱及倍频性质等。

• According to the nonlinear re-radiation characteristic of semiconductor PN node, the nonlinear node detection system for semiconductor junction targets based on second harmonic reception is designed.

  根据非线性半导体p N结再辐射特性，设计了一种基于二次谐波接收的非线性节点探测系统。

• The cause of symmetric inrush is analyzed, and the simulation results show that the ratio of second harmonic in the symmetric inrush is not lower than that in the asymmetric inrush.

  同时，分析变压器对称涌流产生的原因，计算说明对称涌流中的二次谐波比并不一定比单侧涌流低。

• In Cerenkov second harmonic generation (CSHG) scheme, the phase matching condition is satisfied automatically, but the conversion efficiency is low.

  切伦科夫方案中，相位匹配条件可以自动满足，但是倍频效率较低。

• A primary study was carried out and the results revealed that phenylurea had fairly strong nonlinearity, its powder second harmonic generation efficiency was 11 times larger than that of urea.

  苯基脲具有很强的二阶非线性光学效应，其粉末二次谐波产生效率为尿素的11倍；

• Based on the optical rotatory dispersion effect, an optical filter for selecting the second harmonic of a frequency-doubled laser is constructed from quartz in combination with polarizers.

  针对倍频激光中存在基频光的实际情况，依据石英晶体的旋光特性，利用石英晶体和起偏棱镜的组合，设计了一种用于去除倍频激光中基频光的光学滤波器。

• 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；

• The dynamic velocity taper and induced second harmonic are analyzed which improve the miniature TWT efficiency using computer simulation based on Rowe large signal theory.

  本文以罗埃大信号理论为基础，对提高小型化行波管效率的动态速度渐变技术和二次谐波的抑制问题进行了模拟计算分析。

• The green-emitting laser diode offers a number of compelling advantages compared to an equivalent green-output second harmonic generation (SHG) device.

  绿色发光二极管激光器提供了绝对优势相比，同等绿色输出二次谐波产生(倍频)设备。

• Detecting visualization of segmental renal trauma on both second harmonic imaging(SHI)and color Doppler energy imaging(CDEI)before and after enhanced ultrasonography.

  分别用二次谐波显像及彩色能量多普勒成像，观察造影前后局部损伤的位置、范围及回声。

• 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。

• 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。

• 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。

• Furthermore, the degree of collagen damage in the residual thermal zone was evaluated by quantitative analysis of second harmonic generation signals.

  我们能够更进一步定量分析二倍频减少的程度，来 评估雷射后剩馀热伤害的程度。

• As a new technology of nonlinear microscopic imaging, second harmonic generation (SHG) have been widely used in all fields of medicine and biology.

  二次谐波非线性显微成像技术是近年发展起来的一种新型光学成像方法，已广泛应用于生物医学的各个领域。