Digital correlation approach is used to find the time of flight (tof) in ultrasonic distance measurement.
采用数字相关的方法确定超声波测距中的渡越时间。
They fit one distribution to the other, and when they line up that gives them the time of flight, and thus the speed.
他们拟合这两个分布，如果它们吻合则能给出飞行时间，因此飞行速度。
A program is established based on the Monte Carlo technique to simulate the time of flight spectrum in ion atom collisions.
基于蒙特卡罗方法，建立了程序模拟离子与原子碰撞中的反冲离子飞行时间谱。
The application of Fast High Voltage Transistor Switches (HTS) in pulsed ion beam and the time of flight (TOF) setup is described.
详细介绍了快速高压晶体管开关在加速器束流脉冲化和用于二次离子测量的加速器飞行时间谱仪上的应用。
The conditions of cerebrovascular diseases were examined by three dimensional time of flight (3D-TOF) nuclear magnetic resonance (MRI).
所有患者术前均采用三维时间飞跃（3D-TOF）序列技术经磁共振成像（MRI）检查脑血管病变情况；
Positronium Time of Flight Spectroscopy (Ps-TOF) represents the properties about the pore size, direction and inner-connection in materials.
正电子素飞行时间谱能够无损地给出材料开孔的尺寸、方向、以及内部连通性等性质。
However, the Q-track technology does not use signal strength to measure the distance between transmitter and receiver or time of flight like GPS.
然而，在Q -轨道技术不使用信号强度来测量发射器和接收器或飞行如gps时间之间的距离。
We study the dissociation channel and mechanism of anisole in the experiment using the time of flight mass spectrometer with the interaction of laser.
我们的实验是利用飞行时间质谱仪在激光作用下研究苯甲醚的多光子电离质谱能够得到苯甲醚分子的解离通道及机理。
Based on photoemission effect. we design a laser photoemission electron gun for electron impact ionization source of time of flight mass spectrometer.
基于光电效应原理。我们设计了一个新型脉冲激光光电子枪，它可以作为飞行时间质谱的电子碰撞电离的电离源。
A new electron impact storage ion source has been designed for time of flight mass spectrometers with a high mass resolving power and high sensitivity.
电子轰击存贮型脉冲离子源是为高分辨率、高灵敏度飞行时间质谱仪设计的新型离子源。
From the return pulse, LOLA determines the time of flight which, accounting for the speed of light, reveals the distance from the spacecraft to the lunar surface.
之后激光高度计将参照光速，计算出反射脉冲的渡越时间，从而获得飞船与月球表面之间的距离。
With Picosecond Event Timer and other techniques measuring the differential time of flight, the accuracy of the atmospheric delay could achieve millimeter level.
采用皮秒级事件计时器等技术测量往返时间差，修正精度可以达到毫米量级。
In addition, the ion energy of HPIB is also measured with Thomson spectrometer and time of flight method and the results agree with those measured with a pile of thin films.
还将叠片法的测量结果与利用磁谱仪和采用飞行时间法等的测量结果进行了比较，三种方法所得的测量结果基本一致。
Using DSC-Coulometric Nitrogen Oxide Detector, Time of Flight Mass Spectrometer, the authors studied the thermal decomposition characteristics of HMX and its catalytic systems.
用DSC -库仑池联用仪和飞行时间质谱仪对HMX及其催化体系的热分解进行了研究。
Time of flight diffraction (TOFD) was summarized as a new nondestructive testing method. The present seven main TOFD standards in the world were evaluated and compared in twelve different portions.
概述了超声波衍射时差法(TOFD)，对目前世界上主要的七个TOFD检测标准或规范进行了分析和比较，归纳了其中十二个方面的异同点。
Although it dates from several hundred years after the building of the pyramids, its sophistication suggests that the Egyptians might have been developing ideas of flight for a long time.
尽管它的历史可以追溯到金字塔建造后的几百年，但它的复杂程度表明，埃及人可能很长一段时间以来一直在思考飞行的想法。
Because they were bipedal, their arms were free to evolve flapping flight, which cannot be said for other reptiles of their time.
因为它们是两足动物，它们的手臂可以自由地进化出拍打的翅膀，这在当时的爬行动物中是不可能的。
The company says the flight, with an average flight time of 96 seconds, is the shortest in the world.
航空公司说，该航班平均飞行时间只有96秒，是世界上最短的航班。
That's roughly the time of a flight between London to beijing-which is why hardly anyone takes this train.
这么长的时间若是乘飞机，可以从伦敦飞到北京。因此，现在几乎没有人再乘这趟列车。
Puma's standard propulsion system comes equipped with rechargeable batteries with a listed flight time of 2.5 hours.
“美洲豹”标准推进系统是可提供2.5小时飞行时间的充电电池。
Most of these warrant officer aviators and commissioned officers have three times the amount of flight time I did when I was their age.
大部分的准尉飞行员和士官飞行员都接受了比我当年多三倍以上时间的飞行训练。
One more time, you're listening to the flight recorder of flight 2039.
再重复一遍，你们现在收听的是2039航班上的黑匣子。
The ranging precision and measuring speed are decided by the design of the time-of -flight measurement system to great extent.
其飞行时间测量系统的设计很大程度上决定了自触发脉冲激光测距的测量精度和测量速度。
PERISCOPE is an instrument and mission concept with the goal of investigating and mapping lunar skylights from an orbiting platform using photon time-of-flight imaging.
PERISCOPE是一个仪器和任务概念，从一个轨道平台，使用光量子飞行时间成像法，（达到）调查和测绘月球天窗目的。
The acquisition of field emission negative ion and its time-of-flight Spectra (TOPS) brings up to negative ion atom probe invention.
场致发射负离子及其飞行时间谱的获得导致场致发射负离子原子探针的发明。
The technique of coupling ultraviolet photoelectron spectroscopy (UPS) with time-of-flight mass spectrometry (TOFMS) is described.
本文报道了将紫外光电子能谱(ups)和飞行时间质谱(TOFMS)相结合的技术。
The paper concerns in the principle and the experimental results of gas-filled time-of-flight detector.
本工作涉及充气飞行时间探测器的工作原理和实验测量结果。
The kinetic energy release(KER) of the fragments is derived from the time-of-flight spectra. The results are compared with CE model.
从反冲离子飞行时间谱得到氮气分子离子的库仑爆炸释放的动能（KER），并与库仑爆炸模型进行了比较。
The kinetic energy release(KER) of the fragments is derived from the time-of-flight spectra. The results are compared with CE model.
从反冲离子飞行时间谱得到氮气分子离子的库仑爆炸释放的动能（KER），并与库仑爆炸模型进行了比较。
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