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- Noise Metrology in CATV Tests 有线电视测试中的噪声计量
- In this paper, the noise in CATV system is discussed in detail and, moreover, a series of practical formulas for calculating the C/N in CATV system are deduced. 本文详细讨论了电缆电视系统中的噪声问题,并推导出一系列有关电缆电视系统中载噪比计算的实用公式。
- Let us make progress together, take the lead in race in CATV trade together. 让我们携手共进,共同领跑有线电视行业。
- Some significant applications of speckle metrology in science and engineering are also presented in this paper. 介绍了散斑计量在科学和工程研究中的一些重要应用。
- Groups at the Federal Institute of Physics and Metrology in Braunschweig and elsewhere are experimenting with uncharged calcium atoms. 在德国布蓝兹维的联邦物理暨度量衡研究所及其他各地的研究小组,则正在以不带电的钙原子进行实验。
- Scheme on Overcoming the Noise in CATV Net 有线电视网络噪声解决方案
- Application of chemical metrology in the analytical chemistry were summarized in aspects of QSAR, chemical pattern recognition, ANN, spectrum chemistry and multi-proofread. 从化学定量构效关系、模式识别法、人工神经网络、波谱化学、多元校正分析法等方面对化学计量学在分析化学中的应用进行了综述。
- This paper introduces a method of CPFSK modem for data communications in CATV networks. 介绍一种CPFSK调制解调在电缆电视网络中数据通信的实现方法。
- The boy jumped up in surprise at the sudden noise. 突如其来的响声吓得这个男孩跳了起来。
- Variable angle spectroscopic ellipsometry (VASE) is important for metrology in several industries, and is a powerful technique for research on new materials and processes. 在很多种工业上,可变角度椭偏仪对于形态学是很重要的,而且对于研究新材料和新制程更是一个强而有力的技术。
- Some Problems About Implementation of Computer Management in CATV Network CO., LTD. 广电网络公司实行计算机管理须注意的问题
- He held the test tube in his hand thoughtfully. 他沉思地把试管拿在手里。
- Giving deeply study on mechanism of QoS guarantee for real-time service in CATV broadband integrated service network. 对有线电视宽带综合业务网中实时业务的服务质量保证机制进行了深入研究。
- Try to sleep in spite of the noise. 尽管有喧闹声也要设法睡著。
- It is found that the uniform linearly chirped grating can not be used in CATV systems. 对光栅的色散特性进行数值估算,发现常耦合系数线性啁啾光栅不能用的有线电视系统中进行色散补偿。
- The system can be used in CATV network and provide VoD services for CATV subscribers. 从实现的原形系统分析,该系统可用于有线电视网络中,服务于所有的有线电视用户。
- The noise of the car died away in the distance. 汽车的声音消失在远方。
- With the development of DTV and the CATV new business, SDH technology was used more and more widely in CATV network. 随着广播电视的全面数字化和有线新业务的发展,SDH技术被广泛应用于广电网络中。
- The new drug has performed well in tests. 那种新药试验效果不错。
- Carl Zeiss Industrial Metrology is the world’s leader in CNC coordinate measuring machines and complete solutions for multidimensional metrology in the metrology lab and production. 蔡司工业测量部拥有世界领先的CNC坐标测量机,同时为测量室及生产中多维测量任务提供完全解决方案。