关于DIN 988-1990垫片环与支撑环的原文翻译

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[img=1,1][/img]最近看到了DIN 988的原文翻译，不是很清楚，现摘抄如下：
- y8 K4 w9 ?: Q. s' B* }6 t shim rings are designed to prevent machine components from moving axially.the preferred application of these rings is to compensate for the play of such components where secured by circlips as specified in DIN471 and DIN472,DIN983 and DIN 984 or lock washers as specified in DIN6799.shim rings may only be used where the contact faces are smooth. they shall not suffer any deformation when used with components that have rounded edges (shaft collars stepped holes)
5 [3 y4 f! |( u2 s0 {' B; s supporting rings are intended for used with circlips or lock washers to ensure that do not deform when subjected to excessive axial forces as may be expected where the edges of machine components are rounded or chamfered.
$ D" A7 @- i  z6 [ It should be noted that where shim rings and/or supporting rings are used as part of rolling bearings,there may be risk of the rings scraping against projecting parts of the cage,or the inner of outer bearing ring.
我对DIN 988中的支撑环也不是很明白，比如说他要支撑，但是他的一端是接触在卡环上的，卡环的刚度并没那么大，这样做能行吗？
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