有射线的

It is found by X-ray diffraction that the solution of Sm2O3 and Gd2O3 in ceria for the samples sintered in the range of 1 400─1 550 ℃ is better, but for the sample sintered at 1600 ℃, a new phase is formed with the reduction of lattice constants.

X射线衍射分析发现：对1 4001 550 ℃烧结的样品，Sm2O3和Gd2O3固溶较好﹔但对1 600 ℃烧结的样品，有新相生成，同时晶格常数减小。

Such black holes regularly chomp up stars, and that produces a lot of radiation.

这样的黑洞会很有规律地吞噬恒星，也会在这过程中制造出大量的射线。

Numerical migration for typical models show that, in contrast to ray method, prestack wave motion migration can correctly image inhomogeneous media, and suppress multiple reflection wave effectively.

典型的介质模型数值分析表明，与射线方法相比，接收函数的波动方程叠前偏移能对横向非均匀介质准确成像，不仅有较高的分辨率，而且对多次波有较明显的压制作用。

The Chandra X-ray image shows hot gas in the galaxy and point sources that are a mixture of objects within the Sombrero as well as quasars in the background.

钱德拉拍摄的 X 射线图象显示的是星系中的热气体和点源，后者既有草帽星系内的不同天体，也有背景类星体。

Mm. 7.5.3 Requirements for quality of weld joint's surface: a No crack, not fusional, bubble, slag, splash; b Surface of seam of pipeline with design temperature lower than -29℃, stainless steel pipeline and alloy steel pipeline with trend of harden quenching shall be free from undercut.

The surface shall be smooth 7.5.3 焊接接头表面的质量应符合下列要求： 28 SH 3501-2002 a 不得有裂纹，未熔合，气孔，夹渣，飞溅存在； b设计温度低于-29℃的管道，不锈钢和淬硬倾向较大的合金钢管道焊缝表面，不得有咬边现象；其他材质管道焊缝咬边深度不应大于 0.5mm，连续咬边长度不应大于 100mm，且焊缝两侧咬边总长不大于该焊缝全长的 10%； c 焊缝表面不得低于管道表面，焊缝余高Δh 应符合下列要求： 1 100%射线检测焊接接头，其Δh≤1+0.2b1，且不大于 2mm； 2 其余的焊接接头，Δh≤1+0.2b1，且不大于 3mm。

It is the first time to calculate the near noise field with ray method, and replace the inhomogenous SSP in the vertical direction with constant SSP, while other models usually use Fast Field Program such as SARFRI to calculate the near noise field. This model increases the calculation speed about 100 times without decreasing much precision. It can meet the need of engineering.

首次采用射线模型计算噪声近场的贡献，并进一步用等声速代替有垂直分布的声速剖面，而其他模型通常采用诸如SARFRI等快速场程序计算近场的贡献；本模型的计算时间比其他模型的计算时间缩短了2个数量级，精度并未有明显损失，适合工程需要。

These testers are sensitive to base pair substitu-tion mutagens.

Cm 891具有R因子显示了对射线致突变有较高的敏感性。

This database contains geometrical and molecular information that allows the classification and search of particular combinations of site characteristics, and answer questions, such as How many mononuclear zinc-containing sites are five coordinate with X-ray resolution better than 1.8 Angstroms? and then be able to visualize and manipulate the matching sites.

该数据库包含了从几何学到分子学的信息，借助这些信息可以对位点特性组合进行分类和检索，并且可以回答诸如有多少锌指结构包含在优于1.8埃X射线分析结果，随后便可以看到并对这些匹配位点进行操作。

"Specialized techniques include Raman spectroscopy, nuclear magnetic resonance, nuclear quadrupole resonance, dynamic reflectance spectroscopy, microwave and gamma ray spectroscopy, and electron spin resonance."

专门的光谱技术有拉曼光谱、核磁共振、原子核四极矩共振、动态反射光谱、微波和γ射线光谱，以及电子自旋共振。

It's recommended, especially with purebred animals, to get an ultrasound or x-ray to see how many babies are in utero.

它的建议，尤其是纯种动物，以获得超声波或X射线来看看有多少婴儿在子宫内。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。