该系统由变焦物镜系统、二次成像系统和两个反射镜构成。
The system is composed of a zoom system, a secondary imaging system, and two reflectors.
介绍了用二次成像法测定透明玻璃板折射率的原理和方法。
The theory and method of measuring the refraction index of transp are nt glass-plate with secondary imagery method are introduced.
在光电成像系统中，二次成像对正常图像影响较大，轻者降低系统灵敏度，重者产生虚假信号，影响观察。
Ghost image has a great influence on photoelectric imaging system, as it may influence the system sensitivity and cause false signal.
在本论文中，首先指出了由于误解共轴调节中的“二次成像像中心重合”，导致目前的调节方法无法实现共轴调节。
In this paper, we believe that the current approach can not reveal the true coaxial adjustment because of lack of understanding about the co-axial adjustment.
本文是从扫描电子显微镜的成像原理出发，推导了有关阐明二次电子像理论分辨率的公式。
Based on the imaging principle of SEM, the equation for illustrating the theoretical resolution of secondary electron image has been deduced in this paper.
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 have an acoustic densitometry (AD) analysis about the relationship between doses and effects in experiment rabbit liver with second harmonic contrast imaging.
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。
Objective To investigate the application of SonoVuecontrast-enhanced ultrasound and second harmonic imaging in liver hemangioma.
避免了二次距离压缩（SRC），同时提高了斜视下的成像效果。
Secondary Range Compressing (SRC) is avoided and imaging effect is improved remarkably in squint-looking use.
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。
Superharmonic imaging is made for biological tissues and compared with the results from fundamental and second harmonic imaging.
研究结果的二次磁共振成像终点一般都符合首先观察终点中出现的好转，这局限于0.5毫克组患者当中。
Results of the study's secondary MRI end points were generally consistent with reductions seen in the primary end point, which was limited to patients in the 0.5-mg group.
将要讨论的技术包括：波长和能量色散谱，扫描背散射电子，二次电子，阴极射线磷光和X射线成像。
Techniques to be discussed are wavelength and energy dispersive spectrometry, scanning backscattered electron, secondary electron, cathodoluminescence, and X-ray imaging.
在三个月后完成接下来的核磁共振成像，然后在第二次过程的三个月后在进行一次核磁共振成像。
Follow-up MRI was done three months after the initial procedure, and again three months after the second procedure.
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。
Detecting visualization of segmental renal trauma on both second harmonic imaging(SHI)and color Doppler energy imaging(CDEI)before and after enhanced ultrasonography.
非球面透镜能够克服球面透镜的缺点，具有很高的实用价值，故对旋转二次曲面及其透镜成像质量的研究将有重要意义。
Non spherical surface lens can get rid of the spherical surface lens' shortcoming and will be highly valuable, so the study of image quality of rotational conicoid and its lens is meaningful.
针对基于AD9874芯片的数字接收机的最小谱宽和谱宽允许设置的数目均不能满足常规临床用磁共振成像技术的要求，本文从软件角度提出了一种扩展数字接收机谱宽的二次抽取算法。
Here we propose a second decimation algorithm for widening the range of sweep width in the AD9874 based digital receiver to meet the sweep width requirement set by the clinic imaging pulse sequences.
如果失败，第二次手术(延伸到前胃壁上切开术)可尝试一旦失败的原因一直与成像研究确定。
If this fails, a second operation (extending the previous myotomy onto the anterior gastric wall) can be attempted once the cause of failure has been identified with imaging studies.
如果失败，第二次手术(延伸到前胃壁上切开术)可尝试一旦失败的原因一直与成像研究确定。
If this fails, a second operation (extending the previous myotomy onto the anterior gastric wall) can be attempted once the cause of failure has been identified with imaging studies.
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