When changing diaphragms in most drivers the new diaphragm may not be 100% concentric to the old one, and the only way to align it in the magnetic gap is by removing the iron pole from the driver and loosening the screws holding the center pole piece, then and only then the diaphragm can be aligned with the center pole piece and rubbing or touching of the voice coil with the pole pieces in the gap is avoided, this may happen at certain frequencies only, producing a very harsh sound, even passing a static or a dc diaphragm test, therefore the claim that the diaphragms are replaceable in the field is not in many cases true, only when the driver has adjustable screw and dowel locating pin the alignment is possible without getting inside the driver and when alignment of the diaphragm is needed, the plate holding the pole pieces and assembly needs removal, by doing so the pole piece may be well set and aligned but the magnetic field will weaken significantly by such a procedure and solving one problem leads to another one, in this case the driver needs to be re magnetized in order to perform well.
当改变隔膜在大多数司机的新膜片不得100 ％同心旧的，只有这样，才能使其在磁场的差距是通过消除铁柱从司机和松动的螺丝中心柱举行一块，然后才是膈肌可配合中心极片和摩擦或触摸的音圈与极片的差距是可以避免的，可能会遇到这种情况只有在特定的频率，产生了非常严厉的声音，甚至通过一个静态或直流隔膜测试，因此声称隔膜的更换在外地不是在许多情况下，真实的，只有当该名司机已可调螺丝和销子定位销调整是有可能没有得到内部的驱动器和调整时，膈肌是必要的，举行的板极件和大会需要搬迁，这样做极可能是一块很好设置和调整，但磁场将削弱显着这样的程序和解决的一个问题导致另一次，在这种情况下，司机必须重新磁化，以表现良好。
A fixture is a work piece locating and holding device used with machine tools, inspection welding and assembly.
夹具是一种用在机床、检验、焊接、装配等方面的工件定位和夹持装置。
The function of the mold lifting gear is that makes the elbow piece mold promotion or drop, therefore, we designed that was made by the locating cylinder, the release lever, and the base, provided the power by the hydraulic pump, transmited by the release lever, then makes the elbow piece mold promotion and drop.
模子提升装置主要作用是使弯管模具提升或下降，因此，我们设计出其结构主要由定位油缸、杠杆、和机架组成，由液压泵提供动力，由杠杆传递，满足使弯管模的提升。
By using language VB program to process the data of V-shape block positioning scheme computer, the method for reducing the errors in locating the work piece was put forward.
用VB6.0语言编制了计算机程序，对V形块定位方案进行数据处理；分析了定位误差的大小并寻找出满足定位方案要求的工件精度等级。
Screw shaft is widely used as driving piece and locating piece, on account of the characteristic of its structure, it can implement both driving and locating, at the same time, it can turn angle displacement into line displacement.
丝杠是各种机械和仪器中用作定位、传动的重要零件，由于其结构特点，可把传动利定位在同一零件上实现，把角位移变成线位移。
Consequently it not only serves as driving piece and locating piece, but also serves as measuring piece, it plays an important role in mechanical industry, and inversely the developing of industry demands of more high precise screw shaft.
因此，丝杠不仅用作定位、传动元件，还可用来传递位移，它在机械工业中具有重要的地位，而工业的发展也对丝杠精度提出了越来越高的要求。
The location with cylindrical surface is a typical way that was adopted widely, its accuracy analysis has the important meaning to evaluate the stand or fall of locating scheme and to ensure manufacturing accuracy of work piece.
圆柱面定位是广为采用的一种典型定位方式，其精度分析对于评价定位方案优劣，保证工件加工精度具有十分重要的意义。
The prefrontal cortex, home of our working memory, first sparked to life with the realization of the goal and the identification of the sub task, locating the missing piece of information.
前额皮质（Cloud注：可以认为是主意识）开始被激活过一次，明确了当前的目标，并分解出“寻找更多需要的信息”的子任务来。