查询词典 lb.

Torque is the torque in the physics of small, equal to the product of force and lever arm, the international unit is Nm Nm, In addition we can also see kgm, lb-ft of torque of this unit, as a result of G = mg, when g = 9.8 when, 1kg = 9.8N, so 1kgm = 9.8Nm, and the foot-pound is lb-ft of torque imperial units, 1lb = 0.4536kg; 1ft = 0.3048m, can be calculated 1lb-ft = 0.13826kgm.

扭矩在物理学中就是力矩的大小，等于力和力臂的乘积，国际单位是牛米Nm，此外我们还可以看见kgm、lb-ft这样的扭矩单位，由于G=mg，当g=9.8的时候，1kg＝9.8N，所以1kgm＝9.8Nm，而磅尺lb-ft则是英制的扭矩单位，1lb=0.4536kg；1ft=0.3048m，可以算出1lb-ft＝0.13826kgm。

The experimental results show that:(1) LB films are uniform and solid, but it is easy to collapse at higher film pressure,(2) Multilayer LB films process sandwich structure and longspace orderliness, and the phenomenon of crystallization in the process of forming 〓 LB films,(3) The thickness of 〓 monolayer is about 50～60〓,(4) During the formation of 〓 multilayers, molecular arrangement is inclinable to the substrate, the angle is about 25°～30°.

采用小角X-射线散射对多层LB膜的结构进行了表征，发现LB膜具有层状结构的特点和长程有序特征，并对多层LB膜中分子排列的取向状态进行了初步推测，与AFM得到的结果一致。

The method for preparing different kinds of LB film, the present situation of LB film lubrication in magnetic record technique, the factors affecting the quality of LB film were summarized, and the effects of velocity, load and layer number of LB film on their tribological behavior were also discussed.

本文回顾了Langmuir-Blodgett膜的发展简史，综述了各种类型LB膜的制备方法和利用其解决磁记录技术中超薄润滑问题的现状等，并且阐述了影响LB膜成膜质量的因素，论述了速度、负荷和LB膜之累积层数等对LB膜摩擦行为的影响。

The results indicated that the composite films exhibited much improved gas sensing performance.The phthalocyanine and its a-Fe2O3 embedded nano-particulate LB filmswere prepared by Langmuir-Blodgett technique. The films were characterized by AFM, UV-Vis and FT-IR spectra. The results indicated that the embedded LB films were composed of a-Fe2O3 nanoparticles and isopropoxyphthalocyanine molecules. The gas sensitivity of such prepared composite LB films was greatly improved. The film could detect 5ppm of propyl alcohol at room temperature. The composite films could be considered as gas-sensors for alcohols.

利用LB技术制各了异丙氧基酞菁铜LB膜和酞菁铜包埋球形α-Fe_2O_3纳米粒子的杂化LB薄膜，对其AFM、紫外和红外光谱的研究表明，利用LB技术可以实现酞菁与α-Fe_2O_3纳米粒子的有序组装，而且杂化薄膜对醇类气体的灵敏度有较大幅度提高，如对浓度为5ppm正丙醇的灵敏度为3.85，因此，杂化薄膜可以作为室温下醇类气体传感器进行开发研究。

The 6 AChE Genes from L.bostrychophila,L.entomophila and L.decolor were demarcated into Insect TypeⅠAChE Gene and Insect TypeⅡAChE Gene.4 Gene cloning of nAChR and mRNA expression level in L.bostrychophilaTwo nicotinic acetylcholine receptor subunit genes,Lb al and Lb a8,were cloned from the psocid L.bostrychophila.The full length cDNAs of Lb a1(GenBank Accession No.: EU871527) and Lb a8GenBank Accession No.

昆虫的两类AChE严格的区分，其中Ⅰ型AChE先与脊椎动物AChE聚合后才与Ⅱ型AChE相聚，说明两类AChE基因在物种分化前就已经分化。4嗜卷书虱烟碱型乙酰胆碱受体基因克隆及其mRNA表达水平研究利用RT-PCR和RACE技术成功克隆获得了嗜卷书虱2个烟碱型乙酰胆碱受体亚基的全长序列，分别命名为Lb a1(GenBank登录号：EU871527)和Lb a8(GenBank登录号：EU871526)。

Both the LB film from the pure complex and the mixed LB film showa high room temperature in-plane conductivity and a very large anisotropy inconductivity by ca.

纯配合物导电LB膜和混合LB膜均表现出较高的室温横向电导率和显著的电导各向异性。

There was a stable and relatively low expression level for Lb��1 and a progressive expression pattern for Lb��8 among the 1st,2nd,3rd,and 4th nymphal stages.5 Development and reproduction of L.decolor as a function of temperatureThe developmental rate,survival,intrinsic rate of increase,net reproductive rate(R_0),mean generation time,and population doubling time of L.decolor population were evaluated at eight constant temperatures.

Lb a1在1龄、2龄、3龄、4龄若虫及成虫中的表达水平分别是Lb a8的2.03、2.55、4.77、6.54、和5.28倍，且它们之间的差异均达到显著水平(P＜0.05)。5温度对无色书虱发育和繁殖的影响通过比较无色书虱在不同温度条件下的发育速率、存活率、内禀增长率等生命参数以明确无色书虱在不同温度条件下的发生发展规律。

Results indicate that the number of bacteria grown in media LB, CSEA and WSA was 14.84×10^7, 10.27×10^7 and 6.91×10^7 CFU per gram dry soil, respectively, after 192 h of incubation. The diversity index of soil bacteria was the highest in WSA, while the lowest in LB. Certain similarity was discovered in bacteria community between the three media, i. e. the Jaccard index was 57.69% between LB and CSEA, 53.13% between LB and WSA and 66.67% between CSEA and WSA. Phylogenetic analysis suggests that the dominant bacterial groups in the soil belong to β-Proteobacteria,γ-Proteobacteria and Actinobacteria. The sequence of 16S rDNA of some OTUs was found to have high homology with Burkholderiaceae bacterium, Rhodococcus and Mycobacterium, so it is presumed that the cells of these bacteria can secrete Resuscitation-Promoting Factors, which may effectively improve culturability of soil microorganisms.

结果表明，LB、CSEA、WSA培养基192h后每g干土获得的细菌数量分别为14.84×10^7、10.27×10^7和6.91×10^7CFU，但微生物多样性指数以WSA为最高，LB多样性指数最低；三种培养基培养的细菌菌群有一定的相似性，LB和CSEA培养基间的Jaccard指数为57.69%，LB和WSA培养基之间为53.13%，而CSEA和WSA培养基的相似性指数达66.67%；16SrDNA测序结果表明，所获得的土壤细菌优势种群在分类方面主要属于γ-和β-变形杆菌以及放线菌亚门，其中某些OTUs中的16SrDNA序列与Burkholderiaceae bacterium、Rhodococcus和Mycobacterium属具有较高的同源性，推测其细胞能够分泌复苏促进因子，有效地提高土壤细菌的可培养性。

The company was founded in 1994 and now it has developed a complete set of production lines of seamless steel pipe , including 8 cold-drawing pipe machines ( with 4 of them being LB-65t ,4 LB-320t , 2 LB-500t ) and a production line of welding pipe.

公司始建于1994年，十三年的持续发展，形成了完整的无缝钢管配套生产线： LB-65t 冷拔管机、 LB-320t 冷拔管机各4台， LB-500t 冷拔管机2台，不锈钢焊接管生产线一套。

Molecular orientation of copper phthalocyanine LB films was studied by polarized UV-Vis spectra, indicating that the phthalocyanine macrocycle was arranged . The existence of the nanoparticles increased the sensitivity of the composite LB films and decreased response-recovery time to alcohols.

利用LB技术成功建构了酞菁铜及其与二氧化锡复合LB膜，通过偏振紫外—可见吸收光谱证明了酞菁大环分子在LB膜中呈倾斜取向，且复合LB膜对醇类有较高的灵敏度，SnO_2超微粒子的掺杂大大降低了薄膜的响应—恢复时间。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。