To measure the difference in elevation between poles, surveyors used an optical level—a telescope on a level base—placed halfway between the poles.
为了测量两极之间的高程差，测量员在两极中间的一个水平基座上使用了光学水准望远镜。
But this study is the first to experimentally show that optical precursors exist at the single-photon level, and that they are the fastest part of the single-photon wave packet.
而这次的研究则是第一次用实验证明，在单个光子层次上也存在着光前驱，而且它们也是单个光子的波包中最快的部分。
With optical communications embedded into the processor chips, the prospect of building power-efficient computer systems with performance at the Exaflop level might not be a very distant future.
通过嵌入处理器芯片的光通信，建立Exaflop(1018次，是千万亿次petaflop的1000倍)级水平的高效能计算机系统的愿景将在不太遥远的未来实现。
Electronic viewfinders usually larger than entry-level SLR optical viewfinders.
电子取景器比一般入门单反光学取景器更大。
Sales of surveying and mapping equipment from conventional optical theodolite, Level electronic Total Station, GPS and software.
销售的测绘仪器从常规的光学经纬仪、水准仪到电子全站仪、GPS及其软件等。
Sorting technologies in postal services, including optical character recognition (OCR), video complement and address check via bar code have reached the world's top level.
邮政光学字符识别（OCR）、视频补码、码址校验等分拣技术处于世界领先水平。
Optical Scope now provides Camoflouge while using the skill at level 3 onwards. Movement speed loss reduction per level changed from 10 to 5.
光学望远镜到等级3后使用时将会有隐形效果，但每增加1级将会减少移动速度，减少范围为从10到5。
It is the best advantage that we can devise the nonlinear of the organic materials in molecule level, so that we can get the best optical nonlinear response and other optical character.
有机非线性材料最突出的优点是，它能够在分子水平上进行结构设计，以期取得最佳的光学非线性响应和其它特定的光电性质。
This kind of molecular material has strong nonlinear optical properties, and its electronic structures and dipole moments are calculated by use of density functional theory on ab initio level.
该分子材料具有较强的非线性光学性质，其分子的电子结构和电偶极矩是在密度泛函理论水平上利用从头计算方法得到的。
Based on the conventional paraffin sectioning method, observation was done at the optical level on the dynamics of starch during the ovular development in barley.
运用常规石蜡制片法，在光学水平观察了淀粉在大麦胚珠发育中的消长动态。
In summary, through this thesis work, it was in details studied that the influence of level filling on optical properties of quantum well in both electric field and magnetic field.
综上所述，通过本论文的工作，详细的研究了在有外加电场与磁场参与的条件下，能级填充对量子阱光学性质的影响。
Even a small level of birefringence hampers optical properties and product performance.
即使是一个小级别的双折射阻碍了光学性能和产品性能。
Level detection circuit, phase change detection circuit, and optical disk apparatus.
电平检测电路，相变检测电路，以及光盘装置。
The issue of optical imaging in low level of atmosphere is discussed in this paper, with emphasis on the influence of various atmospheric effects on the quality of imaging.
文中讨论了低层大气层的光学成像问题，着重阐述了各种大气效应对成像质量的影响。
Compared with half peak voltage level trigger manner, the measurement accuracy is improved significantly and the application field of digital optical screen is expanded.
与传统的峰值一半电平触发方式相比，能够显著提高测试精度，从而扩大了光幕靶的使用范围。
During the photoelectric conversion process of output signal from optical torque sensor, DC level drift error induced by temperature influence will affect the measuring accuracy of the system.
光扭矩传感器的输出信号在进行光电转换过程中，由于温度影响，造成了直流电平漂移误差，影响系统的测量精度。
The paper analyses optical and circuit system of laser scan micrometer. And high-level laser scan micrometer has been developed.
并对激光扫描测微仪光学系统和电路系统进行了分析，最终成功研制激光扫描测微仪产品。
The traditional method in Labortory is optical level and suspension level, but the two methods can cause larger error.
而传统的实验室方法是＂光杠杆法＂和＂悬架水准法＂，这两种方法的实验结果误差较大。
The emission circuit and photodiode monitoring circuit of microbend optical fiber liquid level sensor system are discussed in this thesis.
在论文中，对光纤微弯液位传感器系统的发射和光电检测电路进行了分析和设计。
Less accuracy, lower speed and easy to be influenced by individuals are characteristic of the traditional optical level, on which the measured data are read by human eyes mainly.
传统光学水准仪主要靠人工目视读数，存在精度低、测量速度慢、易受人为影响等问题。
An apparatus and method for detecting an output power level of an optical receiver, in order to hold output signal levels constant over changing input optical levels.
为了在变化的输入光电平上保持输出信号电平恒定，用于检测光接收机的输出功率电平的设备和方法。
Along with the optical design, processing, testing technology to raise the level of non-spherical optical system has gradually become the most widely used and one of the most effective components.
随着设计、加工、测试技术水平的提高，非球面已逐渐成为光学系统中应用最广泛、最有效的元件之一。
Finally, when there were eight WDM optical input signals, using the black box model and two level model respectively, we simulated the amplified optical spectrum.
最后分别模拟放大系统采用黑盒模型和两能级模型，有八个WDM光信号输入时，放大后的光谱图。
The results demonstrate that the models can reflect the effects of the optical imaging reconnaissance satellite on operation outcomes and be used to analyze space equipment from top level.
仿真结果表明所建模型能够合理反映光学成像侦察卫星对作战结果的影响，可用于从顶层分析航天装备。
An output of the amplifier is applied to a signal detector, wherein an output signal of the signal detector is an indication of an output power level of the optical receiver.
放大器的输出施加到信号检测器，其中信号检测器的输出信号是光接收机的输出功率电平的指示。
The high performance of the CXA2 High Density LED arrays allow lighting manufacturers to reduce thermal, mechanical and optical costs at the system level.
在CXA2高密度高性能LED阵列允许照明制造商降低系统级的热学，机械和光学成本。
These devices have optical waveguide structure, moderate doping level and active layer thickness.
该器件带有光波导结构并具有适当掺杂和有源层厚度。
Presently, ASON is the research hotspot in optical transportation network, in which protection&restoration mechanism can enhance network survivability to a new level.
自动交换光网络（ASON）是当前光传输领域的研究热点，其中保护恢复策略将为增强网络生存性奠定新的基石。
However, the new Panasonic H80 SD camcorders, and its monster level 70 times optical zoom capacity, or people had to use to describe the madness.
但松下新推出的H80标清摄像机，其70倍怪兽级的光学变焦能力，还是让人不得不用疯狂来形容。
The optical relaxation is a process in which nonequilibrium electrons, excited by laser pulses and originating from near Fermi level in Cu ultrafine particles, return to the equilibrium state.
该现象是由薄膜中金属超微粒子内费米能级附近电子被飞秒激光脉冲激发所产生的非平衡态电子经历瞬态弛豫造成的。
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