查询词典 X ray

He then laid a photographic plate behind his wife's hand, and made the first X-ray photo.

那后他放了一张底片在他妻子的手后，制作出了第一张X光照片。

Using X-ray ablative self-similiar solution, the scaling law for plasma expansion effect on transport is obtained.

利用X光烧蚀的自相似解，得到等离子体对输运产生影响的定标公式。

Reduction of the X-ray tube voltage instead of increase of the exposure level would improve the DSA system performance.

结论对DSA系统而言，降低X射线机管电压要比增大X射线机输出强度更能有效改善其低对比度血管的检测能力。

So it is quite important for the XRFA system with X-ray tube excited resource that HV power supply has high reliability, good stability and automatic regulation.

效率高、稳定性好、调节控制自动化的高压电源在以X光管作为激发源的X荧光分析系统中起着十分重要的作用。

Results The morbidity of pneumonia in the elderly in Shenzhn was high（60.8%）,the symptoms of respiratory system were atypical and those of the digestive system or the nervous sysˉtem may be the main features;the chest X-ray inspection mainly showed the features of Bronchopneumonia;the comˉplications were multiple.

对102例老年肺炎的发病情况、临床表现、实验室检查及胸部X线结果进行分析。结果深圳地区老年肺炎夏季发病率高（60.8%）；呼吸系统症状不典型，可以消化道、神经系统症状为主要表现；胸部X线主要表现为支气管肺炎；合并症及并发症较多。

Two coordination polymers [Pb6(H2O)24]·3H2O(1)(H3cit=citric acid)and Pb(H2O)2(2)(tar=tartaric acid)were synthesized under hydrothermal conditions and characterized via IR,TG-DTA,C,H,N elemental analysis,XRD and single crystal X-ray diffraction analysis.

在水热条件下，合成了2个含柔性配体柠檬酸和酒石酸的二价铅配位聚合物[Pb6(H2O)24]。3H2O(1)(H3cit=citricacid)及Pb(H2O)2(2)(tar=tartaricacid)。用红外光谱、差热-热重、元素分析、粉末X射线衍射及单晶X射线衍射等手段对化合物进行了表征。化合物1属三斜晶系，P1空间群，a=0.97053(19)nm，b=0.9764(2)nm，c=1.0955(2)nm，α=109.016(3)°，β=98.380(3)°，γ=92.136(3)°，V=0.9671(3)nm3，Z=2，R1=0.0420，wR2=0.1049，GOF=1.064。

Because of the wavelength of the x rays used, soft x ray microscopes will never match the highest resolution possible with electron microscopes.

其使用的照明度，即所谓的软性 X 射线，其波长在 20 到 40 埃之间(1 米的 100 亿分之一为 1 埃)。

The spatial distribution is anisotropic and symmetric. Soft x ray emission is far more intense than that from clusters and is mainly line spectra although there are some continuum spectra.

发射的软X射线强度远远高于团簇靶，此时的X射线发射主要由线谱组成，集中在lO-20nm范围，最高离化态可达0〓，同时叠加了稍弱的连续谱。

The X-ray average energy measured by the absorption method is 27. 6±2. 1keV,whlch is fitted within the error extent to 26. 0±2. 4keV monoenergetic Xrays

吸收法测出的X射线平均能量为（26.9±2.2）keV和NaI闪烁计数器测出的（26.0±2.4）keV单能X射线在测量误差内相符。

The former consists of LaBe crystal cathode, Wehnelt grid and an accelerating anode, and the latter is comprised of two equal radius concentrating cylinder electrodes.Its well known that the x-ray radiation emitted by electron-beams acting on metal target surface has well developed for about 100 years.

LaB_6电子枪发射的电子束经过静电聚焦系统，被会聚为微米级的电子束斑，该微束斑电子束与固体金属靶相互作用，产生出微束斑的X射线，从而形成微束斑X射线源。

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。