包络环

A strong and stable room temperature phosphorescence emission was observed from the ternary inclusion complex of α-bromonaphthalene/β-cyclodextrin/hexahydropyridine without deoxygenation from solution in the presence of micro amount of HHP.

微量六氢吡啶存在下，由于三元包络物α-溴代萘/β-环糊精/HHP的形成，不经除氧就可观察到强而稳定的室温磷光发射。

Finally, it is proved that any semimodule over complemented semirings must have a ζ_s-injective hull and the complemented semiring must be the rPP semiring and the endomorphism semiring of every principal right ideal is still complemented semiring.

最后指出任一可补半环上的半模必存在内射包络、可补半环必是rPP半环且对于可补半环的任一主右理想的自同态集仍是可补半环。

On the basis of the research on the model of the planar enveloping hourglass meshing surface, the software is developed in which the design environment of enveloping hourglass worm pairs is parameterized.

在平面包络环面啮合型面的精确建模等研究的基础上，进行了包络传动副啮合副参数化设计环境的软件开发。

According to the concept of envelope evaluates equation of contour,the conclusion can be reached that the contour of torus is colse elliptc equidistant curve but is not ellipse.

根据包络的概念解出轮廓线的方程式，从而得出结论：圆环面的轮廓线是封闭的椭圆等距曲线，而不是椭圆。

At last, the envelop of geometry coefficient is drawn, and the Fourier formula coefficient is given.5. Study of wind-induced interference effects on three adjacent cooling-towers.

绘制了不同风向角下体型系数沿环向分布的包络线，并给出了包络线的傅立叶展开式系数。5、冷却塔三塔干扰的研究。

The principles of forming toroidal gear have been studied and the trajectories of the machining tools have been obtained. Then, the generating method for manufacturing of the internal toroidal gear by using the envelope method has been proposed. Further, spatial meshing profile normal theory is applied to design the profile of the proposed hobber, and the fix angles of the hobbing cutter have been confirmed.

对内超环面齿轮齿廓的形成原理进行研究，得出加工刀具的运动轨迹曲线，提出包络法加工内超环面齿轮，并采用空间啮合齿廓法线法设计刀具廓形，确定刀刃切削角度，完成基于SolidWorks的刀具体三维造型设计。

As a result,the tooth profile equations, helix angle equations,limit curve equations and induced normal curvature equations for worm and internal gear are obtained.

介绍了一种新型的传动机构超环面行星蜗杆传动，运用啮合理论的包络法建立了这种传动中行星轮与蜗杆、行星轮与内齿轮啮合的基本方程，进而得到了蜗杆和内齿轮的齿面方程、螺旋升角方程、界限曲线方程及诱导法曲率方程等。

Lost and cost are two problems which are difficult to be resolved coinstantaneous in Fiber Bragg grating reflection signal pickup. We analyzed the spectra transmission characteristics of FBG Sagnac loop with coupled mode theory , and discussed the affection of optical path difference to its transmission.

论文利用模式耦合理论，对光纤Bragg光栅Sagnac环的传输特性进行细致的讨论，分析了光程差对其传输特性的影响，并提出了光纤光栅Sagnac环包络带通滤波器的概念，指出其在光纤光栅反射信号提取中的低损耗和低代价的特性，最后通过实验研究验证了理论上的分析和构想。

Firstly, the developing principles of the cylindrical internal helical gear are proposed through analyzing the movement and geometry requirements, which provides continuous contact between the mating gear surfaces. The tooth surface of the internal helical gear in the new gearing can be imagined as being generated by the normal section of the conjugated surface of the ball-tooth, moving along the radial projection of helix line of the tooth-root circle. Also, the proposed surface can be approximate tangent to the conjugated surface of the ball-tooth along a spacial curve.

首先，通过分析保证行星轮作螺环运动时与内斜齿轮实现连续啮合传动的运动和几何条件，提出了圆柱内斜齿轮齿面的两种形成原理：即由球齿运动包络曲面的法截面沿其齿根圆螺旋线在径向的投影进行拓展所形成的内齿面，以及与球齿运动包络曲面呈近似相切接触的等螺距齿面构成的内齿面。

High-resolution 〓H-NMR spectra were used to confirm the formation of the ICs, and XPS spectra were used to corroborate the formation of S-Au bonds. The significantly improved"reversible"voltammetric responses and the reproducible surface coverages of (2.4±0.2)×10〓 and (2.2±0.2)×10〓 mol/cm〓 obtained for SAMs of β-CD/C〓VC〓SH and α-CD/C〓VC〓SH, respectively, indicate that the intercalated CD can effectively dilute the surface viologen groups and weaken the intermolecular interaction, giving a wellordered and viologen-containing SAM with a determinate surface coverage.

高分辨〓H-NMR谱确证了预期包络物的形成；XPS谱确证了包络物电活性自组膜和S-Au共价键的形成；明显改善的&可逆&伏安响应和重现的紫精基团表面覆盖度[对β和α分别为(2.4±0.1)×10〓和(2.2±0.1)×10〓mol/cm〓]，表明嵌入的环糊精可有效地&稀释&紫精基团，在很大程度上减弱它们之间的相互作用，形成了完备的和有确定紫精覆盖度的包络物电活性自组膜。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了