查询词典 ir

F. Their structures were identified as betulone (1), 3,4,5-trimethoxyphenol-β-D-glucopyranoside (2),α-amyrin (3),β-amyrin (4),β-sitosterol (5), and stigmasterol (6) by spectroscopic evidence (IR, NMR, MS, etc.) and comparision of their spectral data with those of the literatures.

F。 的乙醇提取物中分离得到6个化合物，经波谱分析及与文献数据对照确定其结构分别为：betulone (1)、3，4，5-三甲氧基苯酚-β-D-吡喃葡萄糖苷(2)、α-香树脂醇(3)、β-香树脂醇(4)、β-谷甾醇(5)和豆甾醇(6)。

The principle and main instruments of thermographic slag detection system based on IR technology are introduced in the paper.

介绍使用红外成像技术的热图像炉渣检测仪工作的基本原理及系统构成。

Three methods about measuring transmissivity of IR smoke screen were introduced in this paper.

介绍了红外烟幕透过率测量的三种方法。重点分析了影响多点测量法、逐点测量法测量精度的因素，并对其测量精度进行了比较，提出了三种测量法在使用时应注意的问题

The working elements of smoke screen on countermining IR and laser guided weapons were analyzed.

简要介绍了烟幕的分类和作用，分析了烟幕对抗红外与激光制导武器的工作原理。

The IR spectra indicated that the functional group—COO〓 in PASP linked to the surface of carbon steel. The pitting corrosion inhibition of tungstate and BTA on carbon steel and the passivation of carbon steel in solutions containing sodium borate were studied by the measurement of polarization curves and the curves of current vs.

失重法研究钨酸钠与聚天冬氨酸对碳钢的协同缓蚀效应发现，钨酸钠与PASP对自来水中的碳钢有协同缓蚀作用，加入锌离子可产生进一步的协同作用，碳钢表面分析表明：聚天冬氨酸是以羧基在碳钢表面成键。

In addition, the carbon nanotube has been investigated solicitously for its unique advantage in fabrication of nano-device and potential application in IR detection.

碳纳米管在制备纳米器件方面表现出独特的优越性，而且在红外探测方面具有潜在的应用价值。

The function mechanism among the minerals and floatation drugs had been studied with the way of IR and academic calculation, which pointed out that absorption of G-4 on the surface of phosphorite belonged to physical and chemical types, but the chemical one was in the highest flight. Absorption of amine collector named GE-609 on the surface of quartz belonged to electrostatic and physical type. Distilled water could hardly wash the GE-609 down from the surface of quartz. Leading component of S-721 was the concentrated compound of naphthol sulfonic acid and formaldehyde. The compound had a stronger affinity to the Mg~(2+) on surface of dolomite than the Ca2+ on surface of phosphorite, which is the essential reason in the separation of phosphorite and dolomite. The leading components of soluble glass in function were HSiO3 hydronium and F^SiC^ colloid granule.

通过红外光谱测定以及理论计算的方法研究了选矿药剂与矿物间的作用机理，研究表明：脂肪酸捕收剂G-4对胶磷矿的捕收作用是以化学吸附为主、化学吸附与物理吸附共同作用的结果；胺类阳离子捕收剂GE-609在石英表面的吸附属于静电物理吸附，但很难用水洗的方法使GE-609从石英表面脱附；S-721主要成分为萘酚磺酸与甲醛的缩合物，萘酚磺酸与甲醛的缩合物对白云石表面Mg~(2+)的吸附明显强于对胶磷矿表面Ca~(2+)的吸附，这是胶磷矿与白云石分离的根本原因；水玻璃溶液中对石英起抑制作用的主要组分是HSiO_3~-和H_2SiO_3胶粒，水玻璃除对石英起抑制作用外，对矿浆还具有一定的分散作用。

These include IR, NMR, UV-visible spectroscopy and X-ray spectrography in molecular structure determination.

它们包括红外光谱学、核磁共振学、紫外光，可视光谱学及X-射线光谱图应用於分子结构之判定。

By IR detection and mass spectrometry testing, experiments have proved the existence of product.

通过红外光谱检测和质谱检测，证明有实验产物的存在。

IR and UV-vis were used for qualitative analysis and the ultraviolet spectrophotometric method was used for quantitative determination.

并讨论了温度及阴极电流密度对邻甲苯甲酸产率和电流效率的影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。