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1、北京智博睿信息咨询有限公司www.zhiborui.com拉锁项目可行性研究报告由两条带上各有一排金属齿或塑料齿组成的扣件,用于连接开口的边缘(如衣服或袋口),有一滑动件可将两排齿拉入联锁位置使开口封闭,用来缝在衣服、口袋或皮包等上面。也叫拉链。组成:拉链由链牙、拉头、限位码(前码和后码)或锁紧件等组成。其中链牙是关键部分,它直接决定拉链的侧拉强度。一般拉链有两片链带,每片链带上各制有一列链牙,两列链牙相互交错排列。拉头夹持两侧链牙,借助拉襻滑行,即可使两侧的链牙相互啮合或脱开。工作原理:只有采用现代的机械设备才能制造拉锁。但构成拉锁的核心要素却是人类文明史上最古老,
2、也是最简单的两种工具:楔子和钩子。楔子不过是一种带有斜面的物体。如果用楔子往前推一个物体,您会将物体推到左边或者右边。换句话说,楔子对物体所施加的力的方向,与楔子的运动方向总是垂直的。门碰就是应用这一原理的一个很好的例子:当您将门碰推挤在门下面时,它就会对门的底部施加一个向上的力。犁是另外一种常见的楔子——当您将它往前推动时,它会将泥土或者雪推向两边。钩子当然就是一件弯曲的材料,可以用来挂住另一件材料。数千年来,钩子一直被作为一种扣紧装置,因为它很简便,并且通常很结实。作为扣紧装置时,钩子一般要与某种环状、有眼或有洞的东西配合使用,钩子要钩在这些东西上。expansi
3、onprojectiscompleted,willmainlytargettheelderly,children,work-relatedinjuriesoraccidentsinpatientswithorthopaedics,rehabilitation,childrehabilitation,cardiopulmonaryrehabilitation,neurologicalrehabilitation,painrehabilitationandrehabilitationoperationsandhealthservices,rehabilitation,nu
4、rsingprofessionalstrainingbaseBeijing,astheregionhasacertainscaleandrehabilitationmanagementofmedicalandhealthservicesoftechnologybase.Nextwillbeamodernrehabilitationcentrewithnationalinfluence,inmedicalrehabilitation,rehabilitationtechnology,rehabilitationtrainingandotheraspectswillpla
5、yarolemodelwithintheindustry.Beijingrehabilitationcenterexpansionproject(phaseI)includesmedicalcomplex,work-relatedinjuryrehabilitationfloorofmainbuilding,1thfloor,Eastbuilding,floor,Westbuilding,2ndfloor.anewfive-storymedicalbuildingdesignfortheground,two-storyunderground.theindustrial
6、designofrehabilitationforfourfloorsaboveground,undergroundsecondfloor.Medicalintegratedfloorgroundfivelayermainmeetrehabilitationcenterintegratedoutpatient,nursingunit,operatingroom,ICU,functionusing,undergroundtwolayermainmeetparkinglibrary,herbswarehouse,buildingselectromechanicalcont
7、rolequipment,using.rehabilitationfloormainasrehabilitationmultifunctionalplaces,providesfullrehabilitationphysiotherapy,1th,floorofthreeseatfloorthistimesprojectinthefortransformationengineering,mainmeetrehabilitationcenterfuturerehabilitationtreatment,Teachingexperiment,medica