孔径

In addition, Compton scatter was the major in teraction of photon with the final collimator.

对于光子的散射，又以康普顿散射为主，其它散射所占的份额很小，并且在准直器孔径内主要的是一次散射。

Mechanical-type steam traps Seat number: Mechanical-type trap according to different working pressure section of the valve seat aperture is divided into a variety of specifications of "seat number", each segment of work pressure and the "seat number" composed of a coordinate displacement curve, different "seat number "The sparse amount of water are very different.

机械型疏水阀的阀座号：机械型疏水阀按不同的工作压差段，分成多种规格阀座孔径的"阀座号"，每个工作压差段与"阀座号"组成一条坐标曲线的排水量，不同"阀座号"的疏水量有很大差别。

Radiography and double fluorochrome labeling were taken. Dogs were sacrifice at 1, 3, 6 months post operation and image analysis were done on undemineralized slices then subject to statistical analysis by SAS software, Version 6. 21. 3. BMSCs in vitro induced and proliferated through complete blood culturing were seeded into tricalcium phosphate , fdDBM and 2 kinds of coralline hydroxyapatite with 200μm and 500μm porosity (C200 and C500) respectively.

将全血培养法体外诱导、扩增培养的BMSCs分别与三磷酸钙(tricalcium phosphate，TCP)、两种孔径的珊瑚羟磷灰石（200μm，500μm）以及制备的fdDBM复合，体外培养4～7日后，进行扫描电镜、组织学观察，并行裸鼠皮下回植，了解包括空白DBM材料在内的5组样本的异位成骨情况，经IMAGER-PRO PLUS软件进行图像分析，并进一步行统计分析。

This technique uses a spiral phase plate with a small central aperture placed on the Fourier plane of so imaging system. If the spiral phase filter is rotated by a certain angle around its central axis, a phase shift between the zero-order spatial frequency component and the remaining of the object is produced, and the magnitude of this phase shift is proportional to the rotation angle. Using this property, we can record a sequence of intensity distribution of the output beams corresponding to different rotation angles, and then digitally reconstruct the objects by using a phase-shifting algorithm. Both the theoretical analysis and simulation experiment results demonstrate the feasibility of this approach.

在成像系统的频谱面上放置中心带有一通光孔径的螺旋相位板，在输出面上记录输入物体经螺旋相位滤波后的输出像；将螺旋相位滤波器绕轴旋转一定角度，通过中心光孔的零频成份与其他高频成份间会产生与旋转角度成正比的相移；利用这一特点，通过记录多幅对应不同旋转角度的输出光场强度分布图，然后再用一定的相移算法实现被记录物体相位分布的数字再现。

This technique uses a spiral phase plate with a small central aperture placed on the Fourier plane of an imaging system. If the spiral phase filter is rotated by a certain angle around its central axis,a phase shift between the zero-order spatial frequency component and the remaining of the object is produced,and the magnitude of this phase Shift is proportional to the rotation angle. Using this property,we can record a sequence of intensity distribution of the output beams corresponding to different rotation angles,and then digitally reconstruct the objects by using a phase-shifting algorithm. Both the theoretical analysis and simulation experiment results demonstrate the feasibility of this approach.

在成像系统的频谱面上放置中心带有一通光孔径的螺旋相位板，在输出面上记录输入物体经螺旋相位滤波后的输出像；将螺旋相位滤波器绕轴旋转一定角度，通过中心光孔的零频成份与其他高频成份间会产生与旋转角度成正比的相移；利用这一特点，通过记录多幅对应不同旋转角度的输出光场强度分布图，然后再用一定的相移算法实现被记录物体相位分布的数字再现。

The specific surface area and pore structure of mortar with cracks after electrodeposition were examined by COULTER SA3100 Surface Area and Pore Size Analyzer.

采用COULTER SA3100比表面积和孔径分析仪研究了电沉积处理后带裂缝的砂浆比表面积和孔结构的变化。

Meanwhile fourth order cumulant is used, not only extends synthetic aperture, hut also improves the anti-noise ability.

同时引入了四阶累积量成像算法，不仅可以扩展孔径，而且使系统具有良好的抗噪能力。

Microcells were produced by centrifugation of micronucleated A9 (neo12) cells in Percoll density gradient containing 20 mg/L Cytochalasin B at 39 000 g. The resulting mixture of microcells, whole cells, karyoplasts and cytoplast fragments was filtered through 8 μm and 5 μm size membrane pores sequentially to obtain pure preparation of microcells.

微核化的细胞在含有20 mg/L细胞松弛B的Percoll密度梯度介质中，经39 000g高速离心后，包含微细胞、完整细胞、细胞核和细胞碎片的混合液，依次通过8 μm和5μm孔径的滤膜过滤后可获得纯化的微细胞溶液。

Microcells were produced by centrifugation of micronucleated A9 (neol2) cells in Percoll density gradient containing 20mg/L Cytochalasin B at 39 000g. The resulting mixture of microcells, whole cells, karyoplasts and cytoplast fragments was filtered through 8 pm and 5 pm size membrane pores sequentially to obtain pure preparation of microcells.

微核化的细胞在含有20mg/L细胞松弛B的Percoll密度梯度介质中，经39000g高速离心后，包含微细胞、完整细胞、细胞核和细胞碎片的混合液，依次通过8μm和5μm孔径的滤膜过滤后可获得纯化的微细胞溶液。

Emphasis has been put on changes of structure properties such as crystallization, crystal cell parameter, BET surface area, average pore diameter and pore volume with addition amount of FCC decant oil under conditions that the ratios of toluene to FCC decant oil are 1∶1 and 2∶1 respectively.

结果表明，当剂油比为1∶1时，分子筛的结晶度和晶胞参数随催化油浆添加量的变化呈现先增加后减小趋势，当noil/nCTMAB=0.34时，其晶胞参数最大可以达到5.95 nm；当剂油比为2∶1时，随添加剂量的增加，分子筛结晶度降低，BET表面积成先增大后减小，而孔容和平均孔径呈逐渐增加趋势。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了