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In the milling process, the water quality of Guilin, a very important role to play, practice has proved that only the Guilin area of this water, in order to make a long and continued good Gluten flour, if using the same technology to other places production, are difficult to be effective, it is a must.

在制粉过程中，桂林的水质起着很大的作用，实践证明，只有桂林这片地域中的水，才能做出长而不断，筋力上好的米粉，如果用同样的工艺到其它地方去制作，则难于奏效，简直是绝了。

Goal-keeper defence strategy of traditional Mid-size Group are used to use single geometric algorithms that difficult to adapt to field movement and ball trajectories and state in competition.

中型组守门员多是从单一的几何算法角度上考虑守门员的防守策略，在实际比赛中，场上形势变化快，足球运动轨迹和状态不规则，单一的防守策略较难适应场上变化。

It is difficult to decide whether to assign the victory to Godwin.

很难决定胜利是否属于戈德温。

Meanwhile, it makes it difficult to apply angle conversion system to practical goniometry curcuit. The paper makes improvement on the fast following-up conversion and proposes a high-precision dynamic goniometer system and a nonlinear high-speed following-up conversion mode based on inductosyn. It analyses the causes contributing to the error and deduces the expression bf the basic goniometry errors caused by output signal inaccuracy, and also puts forward the bounds on error of axis-to-angle converting.

对快速跟踪型轴角转换方法进行了改进，提出了一种基于感应同步器的高精度动态侧角系统及非线性快速跟踪型转换方式，分析了产生轴角转换误差的主要原因，推导出由输出信号误差引起的基本测角误差表达式，并提出了轴角转换的误差界。

Modern music is difficult to listen to, but it starts to grow on you.

现代音乐很难使人接受，但是你会渐渐喜爱它的。

Most Ahmedabadis find it difficult to believe that there could actually be people who don't speak Gujarati so expect to have to remind people that you don't understand Gujarati (expect to be looked at as it as if you are very strange when you do that).

最ahmedabadis很难相信居然有人不说话古吉拉特等预期要提醒人们，你不懂古吉拉特语(期待看它仿佛你很奇怪，当你)。

For fans of modern shooters, it may be difficult to adjust to the directionless level layouts, vague objectives that can cause you to fail if you make one mistake, and rudimentary gunplay in which precision is noticeably lacking.

对于现代射击游戏的爱好者，可能不易接受这种方向感差的设计布局、可能因为你的一次射击失误就会失去完成任务机会的模糊的目标以及精准度不高的初代枪战模式。

To be gypsy is to be a member of an ethnic minority that is difficult to define.

被吉普赛人是一个少数民族的成员，难以界定。

His father said he worked hard to make the future of the family business to pay half of the state, saying that some difficult to accept.

他的父亲说，他努力工作，使未来的家族企业支付一半的国家，说一些难以接受的。

In this thesis the process of constructing the non-perturbative Hamiltonian theory is de-scribed and is applied to estimate the vacuum condensate. It contains the following contents:At the very beginning, by using the path integral method and eliminating the gluon freedom, aGCM action 〓 of current quarks including lower order current-current coupling was derivedfrom the QCD Lagrangian and the effective Hamiltonian operator that could hardly be doneby the normal methods was derived. After doing this, the broken vacuum is introduced whichincludes quark-antiquark condensate through the generalized Bogoliubov-Valatin transformation,the effective Hamiltonian of constituent quark was derived. The detailed formulas containingthe spatial current-current coupling term for the effective Hamiltonian and gap equations wasworked out by parameterizing the correlation kernel as a quadratic potential. And then, the gapequation was solved and the quark-antiquark condensate of vacuum was studied both in the casesof instantaneous interaction and retarded interaction. In the end, the effective Hamiltionian withtwo-body quark-quark interaction was derived with one-body approximation, and with the helpof the functional integral method the coupling non-linear dynamic equations for systems withnuclear matter was derived. Finally, these equations were solved by selfconsistent method andthe effect of nuclear matter on vacuum condensate was studied. The spatial current-current coupling term is too difficult to handle, hence the correlationkernel is assumed to be not important and usually omitted in the pure vacuum condensate, andthe instantaneous interaction generally is adopted. Retaining the spatial current-current termand partial retardation effect, the quark pairs condensate in pure vacuum was studied, and theeffect of quark mass was also studied. At present, little study is focused in the case with nuclearmatter and spatial current-current term also omitted. Under the approximation with partialspatial current-current term, the effect of nuclear matter on vacuum condensate was studied.

本论文描述了量子色动力学整体色对称模型哈密顿量方法的构建过程，得到了反映正反夸克对凝聚真空结构的关于组分夸克的有效哈密顿量算符，它隐含了胶子作用，并且准确至流-流耦合项；接着，通过参数化哈密顿量中的夸克作用关联核，导出平方禁闭势参数化选择的哈密顿量的具体公式和能隙方程；随后，应用公式，编程求解，考察了瞬时作用下和部分延迟作用下真空的正反夸克对凝聚，在计算中保留了空间流-流耦合作用；之后，导出瞬时势和延迟势下包含二体作用项的哈密顿量公式，并采用单体化近似，通过泛函变分方法得到核物质存在时耦合的非线性动力学方程；在保留部分空间双流耦合作用的近似下，求解核物质的动力学方程，考察核物质密度对真空凝聚的影响，以往考察真空凝聚，对关联核的选用，由于空间流-流耦合项不易处理，也认为作用不大，常忽略该项，并且常采用瞬时作用；本文保留空间双流项和部分延迟作用，考察了真空情形的夸克对凝聚，还考察了夸克质量对纯真空凝聚的影响，以往对核物质存在情形的真空凝聚考察很少，也都忽略空间流-流项，本文在考虑部分空间流-流项近似下，考察了核物质存在对真空凝聚的影响。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。