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It is confirmed that the hemiplegia patients using the single-footed cane or four-footed canes can improve the standing balance,especially in use of four-footed canes.

使用单拐或四脚拐均能改善偏瘫患者站立位平衡能力；使用四脚拐与使用单拐相比，对平衡能力的改善更明显。

It used to be that four-strokes were sluggish and heavy -- not the best choice for a race bike, but over the last couple of years the motorcycle manufacturers have dedicated a lot of resources towards research and development of four-stroke race bikes and they are now lighter, snappier, and still have smooth power.

如果习惯了四冲的缓慢和重量的话，二冲车就最好不要选择了。但是就过去一些年来摩托车制造商开始花大力气研制重量轻，力量强而平缓的四冲车辆，这不失为好的选择。

And sometimes, calculated "splurges" save both time and money: A taxi ride split by four people can cost less than four bus tickets.

而且有时候计算一下&花费&可以既省钱又省时，四个人分担出租车钱比单买公交车票便宜。

On the basis of the influence factors, it establishes evaluation index system. In the light of the above four aspects, it subdivides each factor and constructs an evaluation system consisted of four levels.

该评价指标体系从前述的宏观环境的四个方面着手，对每一因素进行了细分，构造了包含四个层次指标的评价体系。

Mainly be applicable to and arrange tidy, the lightly mid-degree tooth body of quality integrity changes countenance, whole the tooth light degree arrive mid-degree fluorine spot tooth, whole the tooth light degree four wreaths plain tooths, individual the tooth changes countenance, because the age increases the tooth color that the dentine change causes and delivers Huang and wants to become more white healthy buff tooth, heavy degree four wreaths plain tooth enamels sticks a noodles creation the bleach of front can make and whet in addition to of tooth quantity decrease, the effect is better.

主要适用於排列整齐、质地完整的轻中度牙体变色、全口牙齿轻度到中度氟斑牙、全口牙齿轻度四环素牙、个别牙齿变色、因年龄增长牙质改变引起的牙色发黄，想变得更白的健康浅黄色牙齿、重度四环素牙瓷贴面制作前的漂白可以使磨除的牙齿量减少，效果更佳。

Once was applicable to a small tooth, ex- tooth tooth cleft(the ≤ 2 mms), the whole the tooth light degree arrives to weigh a degree a fluorine spot tooth, whole light degree and mid-degree four wreaths plain toothses, whole tooth heavy degree four wreaths plain tooths match with bleach to also attain better effect, the tooth changes countenance separately, the tooth light degree arranges not and together and needs to change shape separately, and the external injury tooth breaks.

适用於过小牙齿，前牙牙齿间隙（≤2mm ），全口牙齿轻度到重度氟斑牙，全口轻度、中度四环素牙，全口牙齿重度四环素牙配合漂白也可以达到较好的效果，个别牙齿变色，个别牙齿轻度排列不齐，需要改变形状，外伤牙齿折断。

On unitized vehicles with four wheel independent suspension, there is no frame to work with, so we can no longer assume that rear wheels are in correct alignment; therefore, four-wheel alignment is necessary to give proper steering and handling.

在与四轮独立悬浮的统一化的车上，没有工作的框架与，因此我们可以不再假设，后轮在正确对准线；因此，四轮对准线是必要给适当指点和处理。

Linkage mechanism of study. Forepart all gather be linkage mechanism structural analysis and agency designer. In recent years so emphasize in kinetic synthesis dynamic and motility analysis. So text needle towards inquire into slider four-bar linkage mechanism agency positioning control.Research emphases are as PID control, fuzzy control, Fuzzy sliding mode control three kinds of controllers for control core. Permeate practical mechanism to positioning control to function. Simple exertion market vends signal extract card (PCL-833) and multi-function card (PCI-1711). Make it make signal extract and bring forth exportation control voltage. Will AC servo motor turn signal, as positioning system point of angle sensor. Reach to slider four-bar linkage mechanism servo positional control research.

连杆机构的研究，早期都集中在连杆机构的结构分析和机构设计，近年来也多著重於运动及动力分析上，因此本文就是针对於探讨滑块四连杆机构的定位控制，研究重点是以PID控制、模糊控制、模糊顺滑模式控制三种控制器为控制核心，透过实际的机构达到控制定位的功能，运用市面上贩卖的讯号撷取卡(PCL-833)和多功能卡(PCI-1711)，使其对讯号做撷取和产生输出控制电压，将AC伺服马达的转动讯号，作为定位系统的角度感测器，达到滑块四连杆机构伺服定位控制的研究。

Compare to other four syndromes,there is significant difference in Hp infection and histopathology.The main reason possible is that Fu Zhou and its peripheral region's specified weather and geographical environment There is a significant difference between light ,medium degree of splenogastric hygropyrexia syndrome and the other four syndromes.it is correlation to the severity degree of sinus ventriculi greater curvature's histopathology.

脾胃湿热证与其他四型相比在Hp感染、胃粘膜组织病理学上均存在显著性差异，分析其原因考虑福州地区特定的气候和地理环境可能是造成这一结果的主要原因；该证的轻、中、重不同程度在Hp感染上存在显著性差异，与胃窦大弯侧粘膜组织病理学的严重程度存在一定的相关性。

Whilst for the four heavy metals in the water-washing fly ash, the chlorination agents obviously affected their volatilization, especially of Zn and Cu, and more than 95% of the four heavy metals were volatilized after spiking chlorination agents.

水洗灰中重金属的挥发率受氯化剂影响更明显，其中Zn和Cu最为显著，添加氯化剂后，水洗灰中4种重金属的挥发率最高均达到95%以上。

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。