金属环

Macrocyclic polyamine complexes and metalloporphyrins have been applied extensively as nuclease because of their special structures.

大环多胺配合物和金属卟啉由于其特殊的结构和性质已经被广泛地应用到了核酸模拟酶的研究中。

This is the first example of a double-recognition between functionalized-β-CD host and organometallic guest.

这是 第一个修饰β-环糊精主体分子与有机金属化合物客体发生双重识别而形成自包合化合物的例子。

Thecompound 2-1 can also react with CO and DPPB to give osmium vinyl compound 2-4and 2-5,respectively.

这可以看做是[4+1]环化法在合成金属呋喃方面的应用。2-1与CO以及DPPBPh_2P(CH_2_4PPh_2反应分别得到锇乙烯基化合物2-4和2-5。

Metallo-deuteroporphyrin catalysed the oxidate of cyclohexane with air.

位结构修饰的金属次卟啉衍生物催化空气氧化环己烷的研究。

Processing efficiency as a result of cutting-axis achieve the revitalization of planning released the equipment manufacturing industry to adjust exhaust turbocharger atc common faults and exclusion of high-speed cutting edge technology used in the blanking die in and outside the ring of rolling bearing fault diagnosis methods of the term commonly used brief summary of metal material factor in the quality of process performance aluminum water purification technology gap separating sub-micron technology the basic principles of rotary broaching the installation of the basic principles of positioning technology in the context of the characteristics of the engine crankshaft camshaft grinding high-speed implementation of the project highlights the emergence of diagnostic bearing cage diagnostic system 10 cases of preventive measures hardening die steel crack analysis of elastic deformation of the analysis error δφ maintenance and repair pneumatic tools processing tools prismatic conical shape when the surface of the workpiece form error ina sets of cylindrical sliding zgb200x220x180 ina sets of cylindrical sliding cylinder zgb180x200x180 ina zgb160x180x150 ina sets of cylindrical sliding sliding sliding cylinder zgb140x155x150 ina sets zgb120x135x120 ina sets of sets of cylindrical sliding zgb110x125x100 ina sets zgb100x115x100 ina cylindrical cylindrical sliding sliding sliding cylinder zgb90x105x80 ina sets zgb80x90x80 ina sets of sets of cylindrical sliding zgb70x80x70 cnc machine tools in general the structure of the spindle drive motor and the use of the exchange servo motor,the dc converter or to eliminate brush maintenance and high-speed electrical and mechanical constraints,through the belt driving the movement to the spindle,so that the spindle reaches a certain speed to achieve the stepless speed regulation,and consistent use of the speed signal converter to confirm the speed of the motor to achieve the directive,and then cutting into the knife,resulting in improved efficiency

摘 要：由于加工切削效率轴达到实习心得振兴数控机床实习心得发布装备制造业调整废气涡轮增压器常见故障及排除换刀高速切削技术的优势在冲裁模中废旧滚动轴承内外环设备故障诊断常用简易方法名词简介金属材料工艺性能铝材质量因素净化水处理技术空白亚微米分离技术回转拉削基本原理定位安装的基本原则特征技术产生的背景发动机曲轴凸轮轴的高速磨削加工五轴机实施中数控机床实习心得涌现诊断轴承保持架诊断系统预防措施10例模具钢淬火裂纹分析弹性变形误差δφ的分析维护及保养气动工具棱体成形车刀加工圆锥面工件时产生的形状误差 ina 圆柱滑动套 zgb200x五轴机x180 ina 圆柱滑动套数控机床实习心得180x200x180 ina 圆柱滑动套 zgb160x机床实习心得x150 ina 圆柱滑动套 zgb数控机床实习心得x155x150 ina 圆柱滑动套 zgb120x135x120 ina 圆柱滑动套 zgb110x125x100 ina 圆柱滑动套 zgb100x115x100 ina 圆柱滑动套 zgb90x105x80 ina 圆柱滑动套 zgb80x实习心得x80 ina 圆柱滑动套 zgb70x80x70 数控机床的主轴机床信息交流网结构一般采用交流电机和伺服电机，采用变频器或以消除直流电机电刷维护和高速限制，通过带传动把运动传给主轴，进而使主轴达到一定的转速来实现无级调速，同时利用变频器的速度一致信号来确认电动机达到了指令速度后，再进刀切削加工，从而提高了效率

It plays key role in the growth, development and propagation of organisms.

金属配合物，尤其是大环配合物与DNA相互作用的研究逐渐引起了人们的重视。

The jet-shaped protuberance was found on collision region of copper tube with guard ...

最后，利用DYNA3D程序就保护环倒角变化对金属圆管对碰区壳体破裂的影响特征进行了初步分析。

Mined nickel output rose 7% to 28,505 tons as the Raglan and Nickel Rim South mines in Canada and Xstrata's Australian mines recovered more metal.

开采镍产量同比增长7 ％至28505吨作为拉格兰和镍环南地雷在加拿大和Xstrata的澳大利亚矿山回收更多的金属。

The photophysical properties of diarylethene-containing 1, 10-phenanthroline ligands (L1 and L2) and their rhenium complexes [Re3Cl] (1 and 2) were studied systematically.

研究的目的是通过对体系基态和激发态性质的分析确定金属配合和开闭环结构的不同对激发态性质的影响。

The shearing work of two mutually twisted flat screw wires is a key link in the design of rhombic metal mesh weaving machines.

两根互绕扁螺旋钢丝的剪切作业是菱形金属网编织机设计中的关键一环。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。