得到

In addition, we studied the ring-closing metathesis of the diene intermediates to access helicenes by screening a wild reaction condition.

我们还对RCM反应关环得到螺旋化合物的方法进行了研究，筛选得到温和的RCM反应条件。

Both finite element method and discrete operator difference method can be pushed forward from which.

由该方程不仅可以得到有限元法，还可得到离散算子差分法。

With the generation of channel chip with cylindrical or conical difference between the Boolean operator to be, the user as long as the basic parameters can be input.

孔道的生成借助集成块与圆柱或者圆锥之间的布尔差运算得到，使用者只要输入基本参数就能得到。

The fabrication of fibers was attempted. The copolymers, the copolymers containing MOCT and the copolymer films containing MOCT were characterized by using Fourier Transform Infrared Spectroscopy, Scanning Electron Microscopy, Differential Scanning Calorimetry, Thermogravimetric Analyzer and X-ray Diffraction etc. The conclusions were summarized as following,1. The AN/MMA copolymers were testified that copolymerization of most AN and MMA occurred and the ratio of AN and MMA in copolymer was less than the ratio of monomers. With the increase of the contents of MMA, the viscosity of copolymer solution, molecular weight and decomposition temperature of copolymers increase.

通过傅立叶变换红外光谱、扫描电子显微镜、差示扫描量热分析、热重分析、X-射线衍射分析等测试方法对得到的AN／MMA共聚物、含有正十八烷微胶囊的共聚物以及共聚物膜等进行了测试和分析，得到如下的研究结论： 1、丙烯腈—甲基丙烯酸甲酯之间发生了聚合反应，共聚物的组成比略小于投料比；共聚物的粘度和分子量随着第二单体MMA加入量的增加有增大的趋势；第二单体加入量的增大使得共聚物的分解温度升高，通过热重分析证实当AN／MMA摩尔比为85／15时，共聚物的耐热稳定性较高。

A differential form of the SMA constitutive relations is derived,and the relationship between stress and strain is obtained at different temperatures by numerical method.

对SMA的本构关系进行了推导，得到了不同温度下的应力应变关系，并加入了界面的柔化折算，采用数值方法求解。驱动器镶嵌于层板表面或内部，根据电阻反推得到准确的温度。

In this paper, the theoretical model of CQI is described in an atom-diatom system in the condition of the molecular beam, based on the first-Born approximation of time dependent perturbation theory, taking into accounts the anisotropic Lennard-Jones interaction potentials. The method of observing and measuring correctly the differential interference angle is presented. The relation between differential and parameter, velocity is obtained. The relation of the integral interference angle and temperature is discussed.

文中利用一阶含时波恩近似和L-J相互作用势，建立了原子-双原子分子碰撞系统转动传能的量子干涉模型，描述了观察和测量微分干涉角的方法，得到了微分干涉角与碰撞半径和碰撞速度间的关系，同时也得到了积分干涉角和实验温度的关系。

The reducing-coupling reaction of benzoyl chloride under Dy/n-BuBr was complex. Besides diphenyl diketone, benzoin and ring-opening product of THF were also obtained.

苯甲酰氯在Dy/n-BuBr作用下的还原偶联反应较为复杂，除得到二苯基乙二酮外，还得到四氢呋喃开环产物以及安息香。

Fermat and led them to numerous general results which Diophantus himself only hinted. Perhaps more important, however, is the fact that this work, as a work of algebra, was in effect a treatise on the analysis of problems.

史学界一直认为丢番图仅满足于得到不定方程的一个解，本文的中心论点之一是揭示丢番图解法的一般性，亦即丢番图知道解的多样性，只要取不同的值，便可利用他的方法得到其它解。

So we suggest a new method for the measurement of d〓 according to the SHG conversion efficiency at some non-phase-matching direction, the optimum focus parameter ofNPM SHG was given also.

在KTP晶体球中第Ⅰ类PM SHG实验中，我们通过转动晶体球，直接根据谐波输出的强度得到了SHG的相位匹配方向，从而避免了折射率测量或色散方程计算的误差，并得到了精确的KTP晶体完整的第Ⅰ类PM曲线，以及相应PM方向的有效非线性系数d〓，根据这个测量结果，我们对文献报道的六组色散方程进行了比较，认为由Vanherzeele和Bierlein给出的色散方程拟合精度最高。

The results show that the gain and directivity performance have bothbeen improved when using an antenna array.

分析结果表明，这两种天线布成阵列后其增益都得到了明显的改善，方向性得到了增强。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。