时间域反射,Time Domain Reflectometry
1)Time Domain Reflectometry时间域反射
英文短句/例句
1.One possible method to measure water contents is Time Domain Reflectometry( TDR), which is widely-used especially in hydrology or soil-physics.时间域反射法(DR)一种测量含水量的方法,这种方法被广泛应用于水文学和土壤物理学中。
2.Achilles reflex time跟腱反射松弛时间测定
3.Time-domain reflectometry( TDR): An impulse is transmitted into the loop.时域反射器（DR）一个脉冲发射给环路。
4.Study on Reflection Coefficient Based on Time-domain Ray Tracing基于时域射线跟踪法的反射系数研究
5.Measurement of Soil Bulk Density by Time Domain Reflectometry Combined with Soil Sampling;时域反射仪结合土钻法测定土壤容重
6.Present Application Status and Development Trend of the Time Domain Reflectometry时域反射仪(TDR)的应用现状与发展趋势
7.Design of signal acquisition system based on time domain reflectometry基于时域反射计的信号采集系统设计
8.The Application of the Pulse TDR Gauge to Power Plant脉冲时域反射物位计在电厂中的应用
9.Nonreflecting Artificial Boundary Conditions for the Time-dependent Problems;依赖时间问题的无反射人工边界条件
10.Average reflex threshold volume, average reflex latency and average reflex duration were markedly different in SIND, MIND and FC group.但平均反射阈值、均反射潜伏期及平均反射持续时间之间却有显著差异。
11.Study on the Dynamics of Nitrate Leaching in Soil Using Time Domain Reflectometry;利用时域反射技术研究硝态氮的迁移规律
12.The Implementation and Application of Optical Time-Domain Reflectometry with Large Dynamic Range大动态范围光时域反射计的实现与应用
work Cable Fault Location Based on the Wide Pulse Time-Domain Reflection宽脉冲时域反射网络线缆测试方法研究
14.Phosphogypsum Slag Site Monitor Technique Based on TDR基于时域反射法的磷石膏渣场监测的试验研究
15.A Novel Optical Time Domain Reflectometer with Michelson Structure一种具有迈克耳逊结构的新型光时域反射仪
16.Design of Time Domain Reflectometry for Application of Soil Moisture and Bulk Electrical Conductivity Measurements测试土壤含水率和电导率的时域反射仪系统
17.The application of a new OTDR in passive optical networks新型光时域反射计在无源光网络中的应用
18.An Exploration on the Connection betwecn Durationand Dose in High-frequency Radiation and Syndrome;高频辐射作用时间剂量与反应症状关系的探讨
相关短句/例句
TDR Time Domain Reflector时间域反射仪
3)time domain reflection时域反射
1.Depending on the pulsetime domain reflection characteristic and the technology of equivalent sample,we get a resolution of 3 mm.利用脉冲信号时域反射的特征,可以实现对传输路径特征的探测,但直接测量的分辨率较低。
4)TDR时域反射
1.It includes laboratory management; FM EMC photonic sensor; RF EMS test; EM radiation of microwave ovens; measurement of electric properties of material byTDR.文章介绍了第三届国际电磁兼容学术会议提供的抗扰度测量;程控的电压暂降、短时中断发生器;微波炉电 磁辐射测量以及时域反射技术用于测量材料的介电常数与电导率。
5)time domain reflectometry时域反射
1.Thetime domain reflectometry of the coaxial cable was analyzed by studying the relation between the cable geometry and the characteristic impedance as well as the relation between the change of characteristic impedance and the voltage of reflected wave.同时 ,举例说明了同轴电缆的时域反射技术在交通工程中的应
6)time domain reflectometry时间域反射测试技术
延伸阅读
时间实际上，时间单位首先从天文观测来确定的，“1平太阳日或1天（1昼夜）”是以地球相对于太阳的自转周期为基准来计量的，一个平太阳日的1/86400为1秒；后来发现地球自转不均匀，1960年国际度量衡大会把时间基准改为以地球绕太阳公转周期，即规定为1900年地球公转周期（回归年）的1/31556925.9747为1秒；随着精确、稳定的原子钟制成，1967年国际度量衡大会规定国际单位制原子时的时间单位“秒（长）是两个超精细能级之间跃进所对应辐射9192631770个周期的持续时间”。
