探测荧光的测量光的波长多少？
What is the wavelength of light measured in detecting fluorescence?
光学“频率梳”是一种精确测量光的颜色或频率的工具。
An optical "frequency comb" is a very precise tool for measuring different colors-or frequencies-of light.
光度学，光测量光性质的测定，尤其是光强度的测定。
Measurement of the properties of light, especially luminous intensity.
本文报道了一种简单的测量光脉冲强度的时空分布方法。
A simple method for measuring the time and space distribution of the light pulse intensity is reported.
该电流可以用来测量光的亮度或当作电源，就像太阳电池。
The current can be used to measure the Brightness of the light or as a source of power, as in a solar cell.
准确测量光开关的转换时间为其应用在不同领域提供了参考。
The exact measurement on switching time provides reference for optical switches using in different field.
要保证测量光聚焦在待测表面，自动聚焦控制是非常重要的。
To keep the measurement light focusing on the measured surface, an automatic focus unit is very important.
并且实时测量光辐照度和环境温度，在数据处理中对测试结果进行了标准化修正。
At the same time light irradiance and environmental temperature are monitored, which are used for the standard revision of the test result.
由于要测量的电流非常弱，所以用光电倍增管测量光的应用工作通常需要使用皮安计。
Applications such as measuring light with a photomultiplier tube generally require the use of a picoammeter due to the low current levels involved.
介绍了2005年诺贝尔物理学奖的获奖工作-用锁模飞秒激光光梳去测量光的频率。
The work of the winners of the 2005 Nobel prize in physics is briefly reviewed. They measured the frequency of light with mode-locked laser comb.
本文叙述用杨氏双缝干涉装置测量光场空间相干性和由迈克尔逊干涉仪测量光场时间相干性的原理。
The principle measuring the spatial coherence and the temporal coherence of the optical field by Young's interference arrangement and Michlson interferometer respectively is described.
该装置利用光电测距仪的光源和测量光路，采用PF M调制，来完成测量主机到测量站的话音通信。
By utilizing the LED and light way of the instrument and employing PFM modulation, it can transmit voice from the master of the instrument to measuring point.
爱色丽产品线最初的产品包括光密度仪和感光计，可用来测量光或照相密度并按参比标准对菲林进行曝光。
The X-Rite product line began with densitometers and sensitometers used to measure optical or photographic density and to expose photographic films to a standard reference.
首先介绍了光幕测量高度的原理，给出了高度测量光幕的一种实现方法，分析了由该方法设计的系统结构和主要性能。
The principle of measuring light screen is introduced. A design of measuring light screen implemented with C51Microcontroller is proposed. The system structure and main performance are analyzed.
对1999年和2003年采用不同测量光路情况下可见光波段低温辐射计高精度光辐射定标测量结果及其不确定度进行了比较。
The results of highly accurate optical radiation calibration of cryogenic radiometer have been compared between year of 1999 and 2003.
他提醒道，“然而，我们还不能在这些脉冲上编码，也不能用现有的技术由光检测器直接测量。”
However, we cannot code information on these pulses and they cannot be directly measured by a photodector with current technology.
然而，美国宇航局的设备测量到行星的光微小的减弱在另一个行星从它前面穿过时。
Instead, Nasa’s equipment measures the tiny decrease in a star’s brightness which occurs when a planet passes in front of it.
根据多普勒效应，光被离子反射后，靠近激光器的光的频率会高于远离激光器的光的频率，（日常生活中，救护车警报器的音调随着车的远近也变化，就是这个道理）这才有可能测量先前对离子施加的力的大小。
(An everyday example of this effect is the change of pitch of an ambulance siren as it approaches and recedes.) It was thus possible to measure the force applied to the ions.
但是科学家们已经提出了更精确的测量距离的方法了-波长和光的速度。
Scientists have come up with a much more accurate way of measuring distance - wavelengths and light speed.
但是当我们开始确定它们的吸收率时，我们意识到仅硅线包装部分就能吸收比预测量更多的光。
But when we started quantifying their absorption, we realized that more light could be absorbed than predicted by the wire-packing fraction alone.
时空涟漪使得用光束测量的距离像引力波通过那样变化，同时使得落在光电探测器上的光量发生变化。
The space-time ripples cause the distance measured by a light beam to change as the gravitational wave passes by, and the amount of light falling on the photodetector to vary.
通过统计所发出X光的数量，然后对照激光脉冲的频率，测量小组能得出一个非常精确的测量值，从2s能级到2p能级跃迁所需的量子能量。
By counting the number of such X-rays while scanning the frequency of the laser pulse, the team could make a very precise measurement of the photon energy required to drive the 2s-2p transition.
这些齿可以像尺子一样用来异常精确的测量激光器、原子、天体或其它物体发出的光的频率。
The teeth can be used like a ruler to measure the light emitted by lasers, atoms, stars, or other objects with extraordinarily high precision.
格里菲斯大学的霍华德·怀斯曼提出测量一个正在移动的光子(光粒子)的方向是可能的，条件是光子是在哪里被发现的。
Howard Wiseman of Griffith University proposed that it might be possible to measure the direction a photon (particle of light) was moving, conditioned upon where the photon is found.
研究者还特别留意了女性们前额以及脸颊皮肤的紧实度，并且运用X光测量了骨质的密度。
They also noted the firmness of the skin on the women's foreheads and cheeks, and used X-rays to measure the density of their bones.
研究者还特别留意了女性们前额以及脸颊皮肤的紧实度，并且运用X光测量了骨质的密度。
They also noted the firmness of the skin on the women's foreheads and cheeks, and used X-rays to measure the density of their bones.
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