查询词典 X ray

The optical waveguides fabricated by using single benzoic acid and 60% ratio dilution were analyzed by double crystal X-ray diffraction.

用双晶X射线衍射法对单苯甲酸和混合摩尔比为60%制作的光波导进行X射线衍射。

Objective:To study X-ray diagnosis,classification and differential diagnosis of pulmonary alveolar proteinosis.

目的：探讨肺泡蛋白沉积症的X线诊断、X线分型与鉴别诊断。

The MGPXRC can be used to measure the focal spot size of X-ray source with a larger emitting angle than the critical angle of the total reflection of X-rays.

分别利用多毛细管准直器法和常用的小孔成像法测量了同一微焦斑X射线光源的焦斑直径，测量结果分别为60.8和59.4 μm。

Methods Collect 20 cases history of anklebone fracture scaned by X?ray,normal CT scan and quasi coronary CT scan.n,compare the result of exam result.Estimate the application of quasi coronary scan in anklebone fracture in X?

收集踝关节骨折病例20例，均行X线、CT常规横轴位扫描及准冠状位扫描检查，比较三者的检查结果，评价CT准冠状位扫描技术在踝关节骨折检查中的作用。

The platform of diffraction data collection and analysis for protein crystalAccording to the characteristics of Hefei Light Source,based on the XRDS Station in NSRL at USTC,the experiment platform was set up for measuring sulfur anomalous scattering signal with long-wavelength X-ray.

蛋白质晶体衍射数据采集及数据分析的平台根据合肥光源的特点，依托中国科学技术大学国家同步辐射实验室X射线衍射与散射实验站，搭建了适于测量硫元素反常散射信号的长波长X射线衍射实验平台。

Analysis of ASCA observation of the X-ray pulsar 1SAX J1324.4-6200, we get precise pulse period, and find that it is significantly larger than the pulse period determined from previous observations, agreed well with a linear spin-down of the pulsar.

对X射线脉冲星1SAX J1324.4-6200的ASCA观测作了分析，获得其准确的脉冲周期及周期的演化，指出它可能是一低质量X射线双星系统。

This paper describes the importance of using correctly the characteristic curve of the X-ray films in the radiographic detection.

阐述了正确运用X光胶片特性曲线在射线检测中的重要性，研究了X光胶片特性曲线在射线检测过程中曝光参数选取时的实用价值及其相关应用。

And it was divided into four groups at randomly (n=6),The vertical compression,bending and torsion intensity in without and with reduction of cortical fragment of plate fixated contra side, without and with reduction of cortical fragment of plate fixated sidewere measured.A11 results were analyzed with statistic method.2、animal experiment :The 12 adult goats were divided into two group at randomly,wedged cortical defect with 1 cm of long and conjugate diameter was created in the middle-part of the medial femur and plate was fixed in the defect side and as the experimental side,the other side was control.after operation 4、8、12 weeks,investigation of the fracture healing by means of gross observation,X-ray examination and histology in both sides.

测试各组的垂直压缩、三点弯曲及抗扭转的刚度。2、动物实验：12只健康成年山羊，雌雄不限，体重在20～25kg之间，在同一只羊双侧股骨中段内侧制造楔形骨皮质缺损，分实验组和对照组两组进行钢板内固定并植骨，于术后4、8、12周对实验组及对照组行X线正位片检查，观察骨折愈合过程中不同时间点的影像学特点。于4、8、12周各组处死4只动物行大体标本观察，并取缺损区骨组织行组织学检查。X线检查及组织学检查结果根据LaneX线评分标准及组织学评分标准进行评分。最后采用SPSS13.0进行统计学分析。

It is showed that in the X-ray diffraction patterns of the interlayer solid solution Ti3Si0.9Al0.3C1.93 and Ti3Si0.8Al0.4C1.93 bulk samples,which were in-situ reactively synthesized by hot-pressing the elemental Ti,Si,Al and C mixed powders,the diffraction peaks of [00L] crystal planes are very weak,there is only a small diffraction peak belonging to the [008],and the diffraction peaks belonging...

结果发现，用热压Ti、Si、Al和C混合粉末原位反应合成的Ti3Si0.9Al0.3C1.93和Ti3Si0.8Al0.4C1.93层间固溶体块体样品的X射线衍射谱中[00L]晶面的衍射峰极其微弱，只有[008]面有一个小的衍射峰，[002]、[004]和[006]面几乎没有衍射峰存在，而该块体样品的粉末的X射线衍射谱中所有[00L]晶面的衍射峰均存在。

The α-BaB〓O〓 crystal is colorless, transparent and without cracking. The cracking problem has been overcome by a special growth procedure. The dislocation density, crystallization morphology and growth habit of α-BaB〓O〓 crystal have been systematically studied by chemical etching method, X-ray laue orientation of synchrotron radiation, double-crystal diffraction topography. The growth striation and irregular dislocation consist of the primary defect in α-BaB〓O〓 crystal. The convex solid-liquid interface is stable during the whole growth process.

在国际上首次采用提拉法生长出φ50×40mm〓的α-BaB〓O〓晶体，生长方向为[0001]，晶体完整、无色透明；提出了三种固相反应的原料制备方法，并保证B〓O〓过量1mol%；采用独特的生长装置和程序有效地解决了α-BaB〓O〓晶体易开裂的问题；首先采用化学腐蚀法、白光X射线衍射术、X射线双晶衍射形貌术等研究了α-BaB〓O〓晶体的位错密度；首次采用同步辐射X射线劳埃定向术研究了α-BaB〓O〓晶体的结晶形态及生长习性；结果发现α-BaB〓O〓晶体的缺陷以位错为主，部分α-BaB〓O〓晶体中存在生长条纹。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。