查询词典 gamma ray

The products were characterized by X-ray energy dispersion spectroscope, optical micrography and X-ray diffraction.

采用能谱分析仪、光学显微镜和X射线衍射仪对ZrO2/Ni功能梯度材料的成分分布、微观结构和相组成进行了研究。

A series of molybdenum carbide catalysts were prepared using 20%CH4-H2 to carburize molybdenum trioxide at different temperatures. The catalysts were characterized using X-ray diffraction, X-ray photoelectron spectroscopy and N2-adsorption. Their catalytic performance was evaluated in the model reaction of the dry-methane reforming to synthesis gas. Here, the characteration of bulk and surface Mo2C catalysts and its influence on the catalytic performance were described.

以MoO3为前驱物，于20%CH4-80%H2的混合气体(100 mL/min)中，在不同设定终温下进行碳化，制备了一系列不同碳化终温的Mo2C，通过XRD和XPS等手段进行了表征，并对其甲烷二氧化碳重整制备合成气的催化性能进行评价，讨论了碳化终温作为Mo2C的制备参数，与所制备的Mo2C体相、表面特征和催化剂性能的关系。

Mainly deal with development and production of main diesel engine computer remote control pneumatic remote control electromechanical pneumatic remote control device engine roommouldilization "CAN" sit general circuit atandard communication computer alarm system fogwhistle controller Navigation light signal light controller pressure type liquid level gauge alarmdevice and steal belt type of ray communication level gauge digital display temperature pressure gauge with ray indication and pressure transducer.

上海利智船舶自动化设备技术有限公司是一家集科工贸为一体的高科技公司，主要从事开发，生产，主柴油机的微机遥控；气动遥控；机电气动遥控装置：机舱模块化CAN现场总线制通讯微机报警系统，主机测速装置；雾笛控制器；航行灯、信号灯控制器；压力型液位测量报警装置及测量钢带式光通讯液位仪；数字显示带光指示的温度，压力表及压力变送器等。

In the present study, soil samples were scanned by NITON XLt920 field portable X-ray fluorescenceanalyzer, and the relationship between the X-ray fluorescence spectra and the concentration of Pb in soil was studied.

在实验室条件下，利用NITON XLt920型便携式X射线荧光光谱（field portable X-ray fluorescence， FPXRF）仪获取土壤样品的X射线荧光光谱数据，并采用偏最小二乘法建立土壤Pb含量的预测模型。

objective:to explore the clinical value of digital mammography on diagnosis of small breast cancer.methods:we retrospectively analyzed the representation of molybdenum target x-ray in 40 patients with small breast cancer diagnosed by biopsy.result:the molybdenum target x-ray showed nodosity tumor in 17 cases,calcification in 13 cases,density in 8 cases,focal grand architectural distortion in 6 case,single dilated in 3 cases and blood vessel line thickening in 6 case.conclusions:digital mammography is the most important means in the diagnosis of small breast cancer,which can distinguish between different kinds of breast density of different tissues and find small breast lump.the mammography has a high sensitivity in the diagnosis of small breast cancer.

目的：提高对小乳癌影像学的认识。方法：回顾性分析40例经病理证实的小乳癌患者的x线片。结果：x线表现为肿块17例，钙化13例，致密影8例，局部结构紊乱6例，单支导管扩张3例，血管影增多、增粗6例。结论：影像学是小乳癌诊断的最主要手段，能区别乳房各种不同组织的不同密度，能发现较小的乳腺肿块，对于乳腺癌的诊断，乳腺x线钼靶摄片具有较高的灵敏度。

The ray that corresponds to wave surfaces tangent to the spherical wavelets is undeviated and is called the ordinary ray.

球形次级波面的切线相应方向的光称为寻常光。

Methods: Injured patients of cervical spine was cayyied on X-ray inspection.,then according to the result of ADI and LADS ,next to CT or MRI inspection ,and that was to guide clinical diagonosis and treatment.To observe atlanto-dental interval (anterior arch of atlas posterior border to odontoid process anterior border) and odontoid process caster(included angle between axis of ordinate of odontoid process and axis of ordinate of odontoid vertebra) on the X-ray lateral projection.

对有颈部外伤史的病人常规行X线检查，然后根据寰齿间距和齿突侧块间隙的结果，行下一步CT检查或者MRI检查，指导临床治疗方法的选择。X线侧位片观察寰齿前间隙(为寰椎前弓后缘与齿突前缘距离)，齿状突后倾角(齿突纵轴与枢椎体纵轴的夹角)；开口正位片上测定齿突侧块间隙。

The traditional algorithm of Volume Rendering is Ray-Casting, not a proper algorithm for the large 3-D seismic data, referring some improved method and considering the characteristic of seismic data, a new fast Ray-Casting algorithm of oriented image space and negative-view transform was brought forward. As a result, this algorithm excels the traditional obviously by speed with image quality in experiment.

体绘制的传统算法是光线投射法，由于地震数据量大而绘制速度太慢，本文在借鉴一些改进算法的基础上，结合地震数据的特点，提出了一种基于图像空间的逆视变换的加速光线投射算法，实验结果表明该算法在保证相同图像效果的同时，具有明显的速度优势。

C. x-ray findings: x-ray findings are consistent with the histopathologic stage of degeneration. early changes consist of mild joint space narrowing and minimal osteophyte formation. of the periphery of involved joints.

c.x 线表现：x线所见与组织病理的变性期一致，早期变化有轻度关节间隙窄狭窄，受累关节周围有很轻的骨赘形成。

A new method of high aspect ratio and resolution zoneplate fabrication using both electron beam lithography and X ray lithography technology is described The zoneplate, composed of 10μm thick Au with 30 zones and outest zone width of 0 5μm, can be used as a focusing and chromatic dispersion device for 0 1～1nm harder X rays Results show that the zoneplate has contrast of 10 and above, resolution of 0 55μm, and focus length of 21 3cm for 8keV X ray

介绍了利用电子束和 X射线束双曝光技术制作大高宽比高分辨率的 X射线聚焦或色散元件的新方法(波长范围为 1～ 5 nm )。所制做的厚度为 10μm的 Au波带片具有 30个波带，最外环的宽度为 0 。5μm。实验表明：对 8ke V的 X射线来说，波带片的衬度大于 10 ，分辨率为 0 。5 5μm，焦距为 2 1.3cm。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"