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The Fe3O4/Au nanoparticles have been characterized by X-ray powder diffraction, ultraviolet-visible spectroscopy, scanning elec-tron microscopy with the energy dispersive spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and superconducting quantum interference device magnetometry.

采用X射线粉末衍射仪、紫外吸收可见光谱、带有电子能谱仪的扫描电子显微镜、透射电子显微镜、光电子能谱、超导量子干涉仪等方法，对复合粒子的形态、结构、组成以及磁学性质进行了表征。

It is concluded that the micro beam X-ray fluorescence spectrometer with X-ray lens can be used in the microanalysis of plan...

结果表明使用X光透镜的微束X射线荧光分析方法可以实现植物样品的微区分析，有助于进一步了解植物的生长与元素迁移的关系。

We utilized the electrochemistry, scanning electron micrograph, X-ray fluorescence spectroscopy and X-ray photoelectron spectroscopy to demonstrate this mechanism.

我们用电化学方法、扫描电镜、X射线光电子能谱和X射线荧光光谱法对此进行了证明。

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。

Ray emitting radio pulsars which shine on their own, there are a large number of galactic neutron stars and black holes which owe their gamma-ray light to the effect of a companion star.

与释放出v射线辐射的脉冲星自己闪烁不同，很多极大的中于星和黑洞受其伴星的影响，也释放出y射线。

Unlike gamma ray emitting radio pulsars which shine on their own, there are a large number of galactic neutron stars and black holes which owe their gamma-ray light to the effect of a companion star.

与释放出v 射线辐射的脉冲星自己闪烁不同，很多极大的中于星和黑洞受其伴星的影响，也释放出y 射线。

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。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。