查询词典 x rays

And pH7. 5 conditions were obtained and diffract X-rays to 2. 0〓 and 1. 8〓 resolution, respectively. Both crystals are isomorphous and belong to the space group P1; only one AB-heterodimer is in the whole unit cell.

在pH 6.5和7.5两种结晶条件下，AHP IX-bp的整体结构很相似，均方差仅为0.122 〓，但在pH 6.5条件的晶体结构中，His B61具有双重构象，这种结构的变化可能与AHP IX-bp活性的pH依赖性相关。

Powder P205 is used to measure the thermal and fast neutron flux in the X rays field.

4粉状五氧化二磷(P2O5)用以度量照野内中子剂量之工具。

RESULTS:After pinealectomized mice was irradiated WBI with 75 mGy X-rays,we found levels of plasma corticosterone increased obviously,and the effects of the proliferative reaction of splenocytes to ConA and spontaneous proliferation of thymocytes was found to be decrease. But injecting melatonin into pinealectomized mice or putting melatonin in the cultured cell,its immune functions might renew the enhancement.CONCLUSION:Melatonin of pineal gland might regulate the immunoenhancement induced by low dose radiation.MeSH Pineal body; Melatonin; Radiation; Corticosterone; Immunity,cellular

低剂量辐射(low dose radiation，LDR)全身照射(whole body irradiation，WBI)可引起免疫系统的兴奋效应，主要表现在以T淋巴细胞功能激活为主的细胞免疫和体液免疫功能的增强并可提高机体的抗瘤作用［4，5］，在LDR诱发免疫功能增强的同时伴有下丘脑-垂体-肾上腺皮质系统功能下调等神经内分泌功能的改变，神经内分泌对免疫系统的调节可能是LDR免疫兴奋效应发生的必要条件，松果腺MLT与辐射免疫兴奋效应的关系值得研究。

Examination of the heart and associated blood vessels using x-rays following the injection of a radiopaque substance.

淋巴组织的淋巴腺或淋巴组织的，与淋巴腺或淋巴组织有关的，类似于淋巴腺或淋巴组织的

Examination of the blood vessels using x-rays following the injection of a radiopaque substance .

找 blood 。。。相关的英文歌曲找 blood 。。。相关的英语测试到沙龙找 blood 。。。相关的帖子

His discovery came about when Roentgen saw a weak light reflected on a screen as he was working with cathode rays.

伦琴是在研究阴极射线时，看到有微弱光线反射在萤幕上发现了 X 光。

The energyis higher (for ultra violet and x-rays) than (for infra red and visible light).

谢谢大家，我懂了，量子力学我懂一些，只是纯粹的问一下这个英语结构。

ShangHai JunLong Forging Co., Ltd has established a strict quality assurance system and boasts advancdeinspecting and testing equipment, such as DV-4/26 elements, 30 channels spectrometer form BAIRD Comp. U.S.A., Analyzer for C.S.O2.H2 AND N2 from LECO COMP.U.S.A, 400KV X rays Detectorscope from U.S.A. Huse Comp, And large view microscope from Germany and austria, etc, the factory has the manufacturing license of pressure-resistant equipment for nuclear power station.

上海君隆锻件有限公司有一套严格的质量保证体系和较完善的现代检测设备，如美国贝尔德公司DV-4形26元素30通道直读光谱分析仪，美国力科公司碳、硫、氧、氢、氯分析仪，美国休斯公司钴60～100居里Υ射线探伤仪，菲力浦公司400KVχ射线探伤仪，以及奥地利、德国大视场金相显微镜等，还具有核电承压设备的生产制造许可证。

Kg-1. d-1 was administered in a single daily dose;in the second group,Netilmicin (200 mg/d) was combined with cefazolin (3 g,Q12 h);and in the third control group,the combination of cefazolin and Amikacin was used. Pharmacokinetics were studied in 7 patients using the TDX system, and PAE induced by Netilmicin was determined by the Avantage microbiologic system. Clinical symptoms, laboratory studies, chest X-rays, and side effects were observed.

kg-1。 h-1；（2）合用组16例，使用头孢唑啉每12小时1次投药3 g，奈替米星每天200 mg；（3）对照组18例，使用头胞唑啉每12小时投药3 g，与阿米卡星每天200 mg联合使用，分别观察临床症状、实验室很痛检查及临床疗效；应用荧光偏振分析仪药物浓度自动分析仪研究其药代动力学；应用AVANTAGE微生物分析仪研究奈替米星病痛抗生素后效应，观察了奈替米星的肾、耳毒性。

Pristine Li-Al LDHs are synthesized by hydrothermal process in different reaction conditions by varying the aging time for 1 and 24 hours. Both the Li-Al layered double hydroxides (abbreviated as Li-Al LDH1 and Li-Al LDH24 for aging time 1 hour and 24 hours, respectively) were modified by using sulphanilic acid sodium salt hydrate, modified agent to form modified Li-Al LDH1-SAS and Li-Al LDH24-SAS. The morphology of the pristine layered double hydroxides are investigated by using wide angle X-rays diffraction, scanning electron microscopy and particle size analyzer which indicates that the crystallinity and aspect ratio is increased with increasing the aging time from 1 hour to 24 hours. The particle size of Li-Al LDH24 and Li-Al LDH1 are found to be ~1000 nm and ~250 nm, respectively. Both the pristine and modified LDHs are characterized by XRD, FTIR spectra and thermogravimetric analysis.

本研究目的在於改变长晶时间的长短，合成出同径大小的Li-Al LDHs，再经由改质剂sulphanilic acid sodium salt hydrate将Li-Al LDHs无机层材表面有机官能化制备出改质型Li-Al LDHs-SAS，於是进一步藉由扫描式电子显微镜、射径仪和穿透式电子显微镜等仪器分别观察LDHs改质前和改质后其主层结构型态上的变化；从中可以发现Li-Al LDHs随著长晶时间的增加其径有随之增大的趋势，但经有机化改质后其径会由於改质环境的影响明显低许多，针对此现象本实验将未改质和改质后之Li-Al人工无机层材制备成复材进一步探讨其在热性质和难燃特性上的为表现。

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。