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Functional appliance is considered the most effective device to treat mandible retrusion in nonage. By appling orthopedic force, it stimulates mandible growth and improves bimaxillary relationship.

应用功能矫治器施以矫形力促进下颌生长发育，改善上下颌骨间关系及侧貌，被认为是早期矫治下颌后缩最直接有效的途径。

This paper improves the optimal tracing method provided by Rober Netzer etc.by combining the characteristics of PVM,makes the events tracing optimal even when non-tran-sitive message race appears.The improved method has been implemented in PVM_based parallel clebugger.

本文结合PVM的特点，改进了Netzer等人提出的优化记录法，使事件记录在出现非传递的消息竞争时也是最优的，并保证同一进程发送消息时，不会象原算法一样可能进行记录，同时，还在PVM并行调试环境中实现了该方法。

Wangzhuang Coal Mine system is basd on heading machine robotization technology .The new mechine achieve many new fuctions, such as automatic cut-off section, track-line monitoring of cutting, remote control, heading machine automated monitoring or dynamic information and so on. It reduces the labor intensity, improves the operating environment and productivity.

摘 要：王庄煤矿工作面系统以掘进机自动化技术为主导，研发的自动化掘进机实现了断面自动截割成型、截割轨迹在线监测、远程遥控、掘进机动态信息自动化监控等功能，极大地降低了工人的劳动强度，改善了作业环境，提高了生产效率。

The method improved reduces calculation, and improves the real-time performance for attitude estimation. The bank and the pitch angle can be estimated rapidly with a higher robusticity. Its accuracy satisfies the requirement of attitude estimation to control flight vehicles.

改进后的算法可以迅速地估计出飞行器的横滚角与俯仰角，减少了运算量，提高了姿态估计的实时性和鲁棒性，精度满足飞行器的姿态控制要求。

Sabaigrass planting improves the soil water conservation functions. The study results indicated: vegetation influenced the soil water conservationfunctions of the purple sloping fields greatly. Pure and mixed stands of Sabaigrassvegetation not only improved the soil water conservation functions in purple soilsloping fields, but also has the better effect than wild vegetation.

2龙须草种植可明显改良土壤蓄水性能本研究结果表明：植被的存在与否对紫色土荒山坡地土壤蓄水性能影响很大，龙须草纯种植被和龙须草-林木复合种植植被不仅极显著地改良了紫色土荒山坡地土壤蓄水性能，而且其改良效果显著好于野生自然植被。

Japanese looks upon sado as one kind cultivating mental character cultivating moral character , improves culture accomplishment and social contact means being in progress.

日本人把茶道视为一种修身养性、提高文化素养和进行社交的手段。

Firstly, it serves for financial reform, deepens financial management, and improves the scientificalness on financial allocation decision making.

一是服务于财政改革，深化了财政管理，提高了财政分配决策的科学性。

The institutional change dominated by the government in our country has the following characteristics: The basic line and criteria of the institutional change are established by the government; in a institution-suppliers capacity, the government supplies institutions by the means of laws, legal provisions, policies and so on; the government sets up the barriers for institutional innovation and restricts the institutional innovation of the main body in market; the government selectedly promotes the happening of induced institutional change and improves its level of standardization and institutionalisation .

我国政府主导型制度变迁有如下特点：由政府设定制度变迁的基本路线和准则；政府以制度供给者的身份，通过法律、法规、政策等手段实施制度供给；政府设置制度进入壁垒，限制微观主体的制度创新活动；政府有选择地促进诱致性制度变迁的发生，并提高其规范化、制度化水平。

Transplantation of BMSC5 improves the capability of learning and memory as well as the sensorimotor function recovery after stroke.

BMSCs脑内移植可以在卒中早期显著促进大鼠学习记忆、运动及感觉神经功能的恢复。

It settles the distortion of the Slubby Yarn farther,improves the quality,enlarge the spinning range and is applied to all kinds of production in market.

它进一步解决了竹节纱形状变异，提高了纺纱质量，扩大了适纺范围，适纺市面上所有的品种。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。