由于活塞结构和材料的特殊性，对于它的检测只能采用非接触测量的方法，而目前尚没有成熟的技术。
Because of particularity of structure and material, the piston must be measured by the non - contact method. but, at present there isn ' t mature technique.
本文先指出了非接触法测流量的优越性，再基于各种物理原理，叙述了封闭管道流量的几种非接触测量方法与特点。
The advantages. methods and their properties of the non-contact flow measurement for closed pipelines on the basis of some physical principles are described in this paper.
结果表明：具有非接触、高速度和三维测量等优点并与触针式轮廓法具有明显的数据相关性。
The preliminary study shows that computer vision method has the advantages of a noncontact, three-dimensional measurement, high speed and well correlates with the stylus tracing method.
试验结果验证了采用非接触式光电检测技术测量中应变率材料力学性能的可行性。
The feasibility of measuring the mechanical property of material in the mid strain rate condition with the non contact photoelectric detecting technology is verified by experimental results.
通过对量块表面的测量，验证了使用非接触方法测量金属强反射表面的可行性。
Through measuring surfaces of gauge blocks, this system is viable to measure high-reflective metallic surface.
最后，基于所有基础性的研究对非接触式超声波测量井径方法进行了实验。
At last, based on all fundamental researches, there is an experiment has been carry out for ultrasonic measure method.
结论：应用新型光学相干生物测量仪进行人工晶体度数测量，具有非接触性、高准确性、安全而病人易于接受的特点。
Conclusions: The new optical coherence interferometry is a noncontact, safe and patient-friendly method for IOL power calculation with high accuracy.
本论文设计并实现了机载激光测量系统，具有可移动性、非接触性和实时动态采集并3d显示的特点。
A laser measuring system is designed and implemented in this paper, which is moveable, none-touched and used for real-time data acquisition and 3d mapping.
采用光栅非接触测量方法对马鞍型曲面测量，结果表明，该方法速度快、精度高、可操作性强。
A saddle surface was measured by the grating non-contact method and the experiments indicated that the method had a feature of speed, precision, and operability.
DSCM具有全场、非接触性的特点，在测量中可以完全保留变形过程中的物体表面信息。
DSCM with the audience, non-contact characteristics at measurement of the deformation process can be completely retained in the surface information.
本仪器所采用的原理和电路对柔软物体的非接触性测量有参考意义。
The principle and currents of the instrument is reference valuable for measurement of other soft objects.
深度图像的出现对视觉信息处理产生了变革性的影响，它使得视觉概念进入三维非接触测量领域。
Depth image brings forth great influence on information processing technique in the field of computer vision and cause vision concept to enter the 3d non-contact measuring domain.
安全性和精度控制是三坐标激光非接触测量技术在武器系统测量领域中应用所必须解决的问题。
Safety and precision control are problems that 3-coordinate laser non-contact measuring technology be used in weapon system measuring field, and those problems must be solved.
当前，由于非接触性、数据获取速度快以及测量精度较高等优点，主动式光学三维测量成为科技领域的一个研究热点。
Presently, with the features of non-contact, fast speed and high accuracy, the active 3D optical measurement has been one of the research hot spots.
光学三维形貌测量技术具有非接触性、高精度、高速性和自动化程度高等特点，在形貌测量领域得到了广泛的应用。
Optical 3-d shape measurement technology has been widely used in shape measurement because of its characteristics of non-contact, high accuracy, high speed and high automation.
光学三维形貌测量技术具有非接触性、高精度、高速性和自动化程度高等特点，在形貌测量领域得到了广泛的应用。
Optical 3-d shape measurement technology has been widely used in shape measurement because of its characteristics of non-contact, high accuracy, high speed and high automation.
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