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Has formed wheel loaders, wheeled bulldozers, LHD, towed compactors, vibratory roller, tractor, pump, spin drilling rig construction machinery and other products changed nine major series more than 40 varieties.

目前已形成轮式装载机、轮式推土机、铲运机、拖式压实机、振动压路机、牵引车、泵车、旋挖钻机和其它工程机械变型产品共9大系列40多个品种。

The calculated results of present work show better agreement than those of the previous studies with the observed values. It can be found that the contributions to the EPR parameters from the ligand orbitals and spin-orbit coupling interactions cannot be neglected for the systems with significant covalency.

理论结果与实验符合得很好，且比前人的计算，尤其是g和A有明显的改进，说明对这类共价性较强的体系，配体轨道和旋轨耦合作用的贡献不能忽略。

Complementary chaos and spin polarization stability in cyclotrons are studied from the nonautonomous SU(2) dynamical system by the algebraic dynamical method.

带自旋离子在加速器中沿回路运行，相对于磁极运动的粒子会感受到一个磁极产生的随时间变化的磁场。

By means of the spin-dependent quark distributions in 6-quark clusters extended from a pQCD model, the polarized structure function of deuterons is investigated.

利用基于微扰QCD模型得到的 6夸克集团内部自旋夸克的分布函数，研究了氘核极化结构函数的核效应。

By a charge-spin transformation, it is shown that there should be a dimerized metallic phase at U＜-8W.

由电荷-自旋变换给出在U＜-8W时基态应该是一个二聚化的金属。

It indicates that the ground state is a dimerized spin fluid at U＞8W.

当U＞8W时，即使自旋能隙合上了，键序波的长程序依然存在。

By employing the Jordan-Wigner transformation and a modified mean field method, we are able to determine its ground-state quantum phase diagram approximately. The chapter IV is the main part of this Thesis. It contains the main innovations in our work. We propose and study in detail a S=1 Ising chain with the interplay of single-ion anisotropy and dimerization. The main results and innovations are the following: We show that the total number of the zero-component of spins at each site is a conserved quantity. This quantity, which may intuitively called as hole's quantum number, is hidden in the system. We show further that the hole's number in the ground-state is zero; By using the Jordan-Wigner transformation, we map this model onto a series of subsystems described by the spin 1/2 dimerized transverse Ising model. We solve the subsystems exactly, by presenting the exact wave functions and spectra;We show that this system exhibits a series of quantum phase transitions by varying the dimerization strength. We determine the quantum critical points exactly. We also show that the criticality is the same as that of the uniform S = 1/2 transverse Ising chain.

第四章是本文的重点及主要创新内容，我们具体研究了自旋为1的在横向单离子晶格场中的一维二聚化Ising链，我们得到的主要结果和创新之处是：(1)证明了这一模型具有一种隐藏的对称性，即自旋第三分量为零的格点数目是一个守恒量，并证明基态出现在空穴数目为零的子空间中；(2)利用Jordan-Wigner 变换将此模型变换到一系列自旋为1/2的横磁场中的二聚化Ising 模型，并给出了相应严格的波函数及能谱；(3)我们发现系统的基态随着二聚化强度的变化将呈现出一系列量子相变，我们得到了量子临界点的精确位置，并证明其临界性质与自旋为1/2的横磁场中的均匀Ising 链中的临界行为属于同一普适类。

They are the friends who can always put the comedic spin on the direst situation.

生活中总有这样一群人，总在车道山前时，笑说&必有路&！

Humans are receiving energy emanations from this nebula, which affect the molecular spin within the blood.

人类正在接受来自这个星云的能量射线，它影响人类血液中的分子旋转。

It soared, a bird, it held its flight, a swift pure cry, soar silver orb it leaped serene, speeding, sustained, to come, don't spin it out too long long breath he breath long life, soaring high, high resplendent, aflame, crowned, high in the effulgence symbolistic, high, of the etherial bosom, high, of the high vast irradiation everywhere all soaring all around about the all, the endlessnessnessness...

429声音飞翔着，一只鸟儿，不停地飞翔，迅疾、清越的叫声。蹁跹吧，银色的球体；它安详地跳跃，迅疾地，持续地来到了。气不要拖得太长，他的底气足，能长寿。高高地翱翔，在高处闪耀，燃烧，头戴王冠，高高地在象征性的光辉中，高高地在上苍的怀抱里，高高地在浩瀚、至高无上的光芒普照中，全都飞翔着，全都环绕着万有而旋转，绵绵无绝期，无绝期，无绝期

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。