Quasars are so far away that they constitute the best frame of reference for measuring Earth's rotation rate.
到目前为止，类星体是测量地球自转最好的参照系。
European researchers h tried taking a wooden frame and measuring the numbers that appear over a given time.
欧洲的科学家曾经试图通过一个木制的架子来测算在一个特定时段内通过的昆虫数量。
The Quality of lead frame plating layer directly affects the solderability of tantalum capacitor, so its measuring methods are very important.
引线框架电镀层的质量直接影响着钽电容器的可焊性，所以引线框架电镀层质量的测定方法至关重要。
Based on extracted feature frame, the measuring data is segmented into regions with single geometrical feature.
并以特征线框为依据，对测量数据进行分割，形成具有单一表面特性的区域数据。
This paper analyses the traditional automatic control method and mechanism of nc cold frame bender. The basic principle of control method for measuring chord length is described.
分析了传统的数控肋骨冷弯机控制方法与机构，阐述了弦线测量控制法的基本原理。
Before measuring the thickness of brake, the image is converted from field format to frame format, it means that the size is doubled in vertical direction.
在完成厚度测量之前，首先对图像进行场模式向帧模式的转换；
On the basis of measuring principle and users 'requirement, this paper designs the main frame of the system and explains detailed both the principle and the method for hardware circuit design.
论文在研究系统测试原理和功能要求的基础上，设计出了系统的总体结构并较详细地论述了系统各部分硬件电路的原理和实现方法。
Field intensity measuring, DSP numeralization and speech compression technology have been applied into the system design. Hardware implementation and communication protocol frame were established.
该设计采用了场强抽样测量和DSP语音数字压缩技术，建立了完善的硬件实现和网络通信协议框架。
This chapter has made the concept of social environmental cost, and elaborated its method of measuring and measure frame theoretically.
这一章提出了社会环境社会环境成本的概念，并从理论上阐述了它的计量方法和计量框架。
A hardware platform of binocular stereo measuring system with simple structure was built with low cost, which consists of CCD cameras, lens, a frame grabber card, a computer and a tripod.
以较低的成本建立了一个结构简单的二目立体测量系统的硬件平台，主要包括CCD相机和镜头，图象采集卡、计算机、三角架。
Eccentric photorefraction is a method of measuring the refractive state of human eye by capturing a frame of pupillary image remotely.
偏心摄影验光法是一种根据一定距离上拍摄的眼瞳图像测量人眼屈光状态的方法。
Conclusion: as a surrogate method for measuring coronary flow velocity, TIMI frame count can be used to assess coronary flow reserve effectively in different coronary artery diseases.
结论：作为测定冠状动脉血流速度的一种替代方法，TIMI计帧法能够有效评价不同冠状动脉疾病状态下的冠状动脉血流储备。
Then, by measuring the total amount of rest-frame ultraviolet light, researchers can estimate the number of high-mass stars in the galaxy.
然后，经由测量静止座标光谱中紫外光的总量，研究人员就能够估计该星系里大质量恒星的数目。
An oil pump testing system is presented in this paper. It is consisted of three ports, i. e. mechanical frame and pipelines, measuring and control unit, and computer managing unit.
所研制的汽车机油泵试验系统，由机械台架管路部分、测控系统和计算机管理系统三大部分组成。
The natural frequency for the main component frame vibration loom is analyzed, the reasonable layout and measuring is put forward, the reference data for vibration reduction is provided.
对织机主要部件机架的振动进行了固有频率的理论分析，给出了合理的测点布局与相应的测试方法，为减振提供了参考数据。
By improving on the Epstein frame measuring system, a method is proposed to measure the material loss under non-sinus.
通过改进的爱泼斯坦方圈实验，给出一种非正弦供电下电工材料性能的实验研究方法，实验结果与理论值吻合较好。
Heavy duty measuring unit, single wheel unit which has frame or bulkhead mounting.
重型计量单位，单轮单位已架或舱壁安装。
Heavy duty measuring unit, single wheel unit which has frame or bulkhead mounting.
重型计量单位，单轮单位已架或舱壁安装。
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