It is usually expressed by the decibels which is the straight beam probe tested the second time subtracting from the first bottom surface echo amplitude.
通常用纵波直探头测试的第几次与第一次底面回波幅度所差的分贝数表示。
By contrast, Voyager 1, the most distant functioning space probe, is using an extremely weak transmitter to beam radio messages back to earth across 10 billion miles of space.
与此形成鲜明对比的是，最遥远的旅行者1号太空飞船在飞出100多亿公里之外，还能利用极其微弱的发射器将无线电信号传回地球。
In the paper. the interference intensity of signal laser beam and the reference one is carried out in detail on a heterodyne laser probe with amplitude modulated laser source.
本文详细推导了用振幅调制激光为光源外差激光探针的信号光与参考光干涉光强表达式。
Compared with traditional ultrasonic probe, ultrasonic phased array probe can realize transition, deflection and dynamic focusing of acoustic beam under electronic control.
与传统的超声波探头相比，超声相控阵探头可以实现电子控制下的声束平移、偏转与动态聚焦。
Moire deflection measurement can be used to calculate refractive index by measuring deflection of probe beam passing through mediums.
摩尔偏析测量术通过测量探针光束经过不均匀介质后光线的偏折来估算介质的折射率。
For large probe beam divergence the SNR is relatively poor, and even a streaky signal process is predicted if a point target is scanned across.
系统发射的探测光束发散角较大时，信噪比较差，且光束扫过点目标可能出现条纹状信号过程。
For an a mode biometric probe, ultrasonic beam orientation, measuring position and speed setting ensured the precision of the measurement.
对于A型生物测量探头，通过在声束定向、测量位置和声速设置等方面的设计思想，有效提高测量精度。
The central one of the fiber probe is used for transmitting laser beam, the others having same spaces to the center one are used for receiving scattered signal.
在装置中间，其中一根光纤用于传输入射激光，周围多根光纤与中心光纤等间隔，用于接收血液中的散射光。
Real time graphic display of probe position, beam surface position, gate delay and gate width during scanning.
实时显示探针位置所对应的图形，播送表面位置，门控和门控宽度。
The result shows that with the aid of the probe beam, the electron density can be probed with a much higher temporal resolution and the disturbance of harmonic can be effectively avoided.
结果表明两级喇曼压缩系统配偏振干涉能有效抑制主束谐波影响，以更高时间分辨测量等离子体的更高密度区域。
In optical spectroscopy a correct intensity measurement of the probe beam is fundamental during material characterization.
在光谱学中，探测器光柱的正确亮度测量是描述材料的基础。
For example, in optical spectroscopy, a correct intensity measurement of the probe beam is fundamental during material and device characterization.
例如，在光谱学中，探测器光柱的正确亮度测量是材料和设备描述的基础。
The produced oxygen plasma has been measured by double probe technique. The obtained oxygen beam has be...
用双探针技术对生成的氧等离子体进行了诊断测量。
When the Angle of the probe beam is near Brewster Angle the reflectivity can reach up to 60%.
当物光近于布儒斯特角入射时，反射率可达60%。
The effects of spatial distribution on the experimental results are studied in spectrally resolved two-beam coupling pump-probe technique.
在测量非线性折射率和双光子吸收系数的频率分辨双光束耦合抽运探测技术中，光场的空间分布没有得到考虑。
Within the next generation, Breakthrough Starshot aims to develop a nanocraft a gram-scale robotic space probe and use a light beam to push it to 20 percent of the speed of light.
在一代人的时间内，突破摄星旨在研发出一台纳米飞行器一台质量为克级的主动化太空探测器而且通过光束把它推动到五分之一的光速。
If there was a problem with the chip, you could probe the metal directly to watch the circuitry, and, with a focused-ion-beam system, you could even rewire it.
如果芯片有问题，应该直接研究金属层来察看电路，而对于聚焦离子束系统则应该重新布线。
Objective To probe the clinical utilization of electron beam ct (EBCT) in the diagnosis of cardiac neoplasms.
目的研究电子束ct (EBCT)在心脏肿瘤诊断中的临床价值。
An innovative laser beam tracking system is proposed to eliminate the tracking and feedback errors. The open probe design of the AFM makes the operation in liquid convenient and easy.
采用全新的光路追踪方案与探针扫描方式，消除了测试过程中横向扫描和纵向反馈带来的误差，开放式的探头设计使液相操作更为便捷。
An innovative laser beam tracking system is proposed to eliminate the tracking and feedback errors. The open probe design of the AFM makes the operation in liquid convenient and easy.
采用全新的光路追踪方案与探针扫描方式，消除了测试过程中横向扫描和纵向反馈带来的误差，开放式的探头设计使液相操作更为便捷。
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