Obtaining an accurate migration velocity model is fundamental to successfully do PSTM. By iterating for the ray-bending migration and velocity analysis, all reflection events are made as flat as possible. Migration aperture is another key factor for PSTM imaging. It`s related to the structure`s dip, depth and velocity. Parameter of anti-aliasing filter has some effects for the migration section, thus it`s one of the factors we should pay attention to.
偏移速度是偏移成像好坏的主要因素，通过迭代进行偏移、速度分析，使共成像点道集拉平，从而实现构造的准确成像；偏移孔径也是影响偏移成像的一个关键参数，其选取与成像目标层的倾斜角、深度、速度等有关；反假频参数对偏移成像效果有一定影响，是偏移中需要考虑的因素之一。
Section views of the casting along with X-ray photographs can be seen in Figure 3. A pressure-tight power train casting, the oil pump filter housing requires leak tightness at 5 bar.
铸件剖面及铸件 X 射线照片如图3所示，此产品是需要承受高压的铸件，油泵过滤器壳体需要的防漏压密封压力为5 bar 。
My favorite two warming filters are Singh-Ray's A13 warming filter and Tiffen's 812 filter the latter is more powerful when the blues really need correcting
我最喜欢的两个暖调镜是Singh-Ray`s A13暖调镜和Tiffen`s 812 滤镜（后者在蓝色十分需要纠正的时候更有用
X-ray, which is excited from the X ray tube, has one wavelength scope, that is energy scope. According to the elements to be analyzed, X ray is choused by filter, and reach the sample. Atoms in the sample will absorb the X ray energy and the decay to emit the special x ray. The X ray will be collected by the collimator into the detector active area, and transferred into electron signal, the signal also will be processed in to energy spectrum and related concentration data by pulse processor with software.
从X光管通过激发Excitation发射出来一定波长范围也就是说一定能量范围的X射线，结合所需要分析的目标元素，使用滤光轮选择对应的能量范围的X射线，照射到样品上，样品中含有的元素原子电子受到激发会发射出其特征的X射线，同样通过Collimator准直器收集一定孔径的X射线进入到检测器Detector，检测器将感应到的X射线转换为电信号，电信号经过脉冲处理器Pulse Processor结合软件进一步将电信号转换成为能谱图以及相关浓度信息。
B. Using a filter at the X-ray tube and increasing the exposure time.
在X射线管上放置滤波器，并延长曝光时间
Some recent study found that because of the sunlight into the eyes of the Blu-ray harm a person's eyes, and blue lenses can not filter out the sun in the blue spectrum, so, the choice of sunglasses when it is best not to choose blue chips.
最近一些研究发现，因为进入眼睛的太阳光中的蓝光会伤害到人的眼睛，而蓝色镜片不能够过滤掉太阳光谱中的蓝光，所以，在选择太阳镜的时候最好不要选择蓝色晶片。
Among them, d1 and infrared ray receive infrared transmitting tube tubal Q1 was comprised infra-red detect collect circuit; R2 and C1, C2 and C3, R4 and C4 and IC1a made group of signal anti-noise circuit jointly, the filter of leftover and the photoelectricity segregation that they assumed the low wave connecting filter to signal, stray light route respectively, high frequency interference is divided wait for the task.
其中，红外线发射管D1和红外线领受管Q1组成了红外检测采集电路；R2与C1、C2与C3、R4与C4和IC1a配合组成了信号抗干扰电路组，它们分袂承担了对信号的低通滤波、干扰光线的光电隔离、残余高频干扰的滤除等任务。
By using the digital GM surveymeter (TGS 501 type) made in Japan, we carried a comparative evaluation on the efficacy of 7 kinds of VDT filter s used to attenuate β-ray, the object was 12in CRT display unit of 9836C type.
采用 TGS5 0 1型 GM管检测仪，以 983 6C 3 0 cm CRT显示器为对象，判明 7类 VDT用滤光屏分别可减弱β射线辐射量的 2 3 %～ 88%。
Because soft x ray multilayer mirrors have high reflectivity and strip filter function, their applying territories are expanded contimuously. Various fields in x ray optics grow strong demands for them.
由于软x射线多层膜反射镜具有高反射率和带通滤波的特点，x光学的各个领域对之产生了强烈的需求。
In this thesis, we systematically investigated the synthesis of oriented diamond film, nano-diamond film, boron-doped diamond film and AIN/diamond film using chemical vapor deposition. The parameters for the growth of these novel diamond films were studied. By means of Raman spectroscopy, scanning electron micrograph, energy dispersive X-ray analysis, X-ray diffraction and secondary ion mass spectrometry, we analyzed the characterization and structure of these new diamond films. In conclusion, we have completed the fundamental investigation and prepared some new diamond film devices: the field-emission device of nano-diamond film, the electrical hardness measurement device of high boron-doped diamond film, high boron-doped diamond film electrode and the high-frequency surface acoustic wave filter of AIN/diamond film.
本论文系统研究定向金刚石薄膜、纳米金刚石薄膜、掺硼金刚石薄膜和AlN/diamond复合膜等新型CVD金刚石薄膜，详细阐述了这几种新型金刚石薄膜制备过程和生长参数控制，并利用拉曼光谱、扫描电镜、X射线特征能谱和X射线衍射仪以及二次离子谱等分析手段对薄膜的性质结构进行了分析，完成了新型金刚石薄膜的基础研究，并制备了性能优秀的薄膜器件：大面积纳米晶作为场发射器件；掺硼金刚石薄膜电子硬度计压头和新型掺硼金刚石薄膜电极；AlN/diamond复合膜表面声波滤波器。
Hard x ray spectra in the energy range of 15—250keV were measured using the multi channel filter fluorescenuce spectrometer.
采用多道滤波荧光谱仪测量 1 5— 2 5 0keV硬x射线谱，由高能x射线谱通量和斜率推算出这两种内爆靶产生的超热电子份额ηhe和超热电子温度Th 分别为ηhe=2 5 %— 30 %，Th=30— 4 0keV和ηhe=0 5 %— 4 %，Th=10— 2 0keV 。
The dispersion abeorption of seismic data with zero offset ray peth can be reduced significantly byusing the Hargreavers's inverse Q filter.
应用Hargreaves的反Q滤波算法，可准确校正零炮检距射线路径条件下地震记录的频散吸收。
In X-ray fluorescence, pieces of the filter are used directly.
在 x射线荧光法中，可直接使用滤纸。
On the basis of atomic transition enerygy and absorbed bounds, a filter of the same ingredient as target material was adopted. This method can make the original polychrome X-ray turn into almost homochrome. Simulation analysis was taken by Egsnrc software based on Monte Carlo method and good effect gained.
根据原子的跃迁能量和能量吸收限，确定了用和靶材料相同的材料做成滤波片，可以很好地吸收靶物质所产生的低能射线，使最初的多色X射线谱近似单色化，并用基於蒙特卡罗方法的Egsnrc软件对硬化校正方案进行了仿真分析，获得了很好的结果。
Ambient air - Measurement of the mass of particulate matter on a filter medium - Beta-ray absorption method.
NF X43-040-2000 大气空气。在一过滤媒介上颗粒物质质量的测量。
Analog Computation of X-ray Energy Spectrum Measurement with Filter-fluorescence Method
可调式光分路滤波器滤波-荧光法测量X光能谱的模拟计算
With this ROSS-FILTER-PIN spectrometer, the energy spectra of soft X-ray from a small gas-puff Z-pinch were investigated, and the correlation between the soft X-ray yield and the plasma implosion state was also studied.
借助此能谱仪，测量得到了喷气式Z箍缩（Z-pinch）等离子体辐射软X射线能谱的分布，并研究了软X射线产额随箍缩状况的变化趋势。
The good filtration leaching residue in the XRD map showing the intensity and clarity of crystalline diffraction lines are more significant; But the poor filter residue showed X-ray diffraction intensity is weak and vague.
过滤性能良好的浸出渣在XRD图上显示出衍射线的强度与清晰度都较为显著，而过滤性差的浸出渣表现出X射线衍射强度较弱且模糊。
Ambient light filter cathode-ray tube spot scanner
阴极射线管光点扫描器
Preparation and Property of Filter for Color Cathode Ray Tube
彩色显像管滤光膜的制备与性能研究