标题: 17.2怎么理解 [打印本页] 作者: kuiyin01 时间: 2009-12-2 12:23 标题: 17.2怎么理解 17.2 Replacement of the fifth paragraph, except for belt sanders:% D7 E* v7 b w0 N. f" e
Orbital sanders and polishers, random orbit sanders and polishers, and reciprocating sanders ) @0 w$ Y0 ~9 T9 m0 A8 ?and polishers are operated while the platen, fitted with abrasive paper in reverse position or a6 v7 h1 F X: K V; R
polishing bonnet as applicable, is resting under the weight of the sander or polisher on a steel ; o3 b5 \; b4 }! L& ?plate. The abrasive paper should be replaced as required to avoid direct contact between/ C+ T1 l- \. h( r. ~! A
platen and steel plate. These tools are only tested in the upright position where the platen is 3 z3 u7 F( V$ ~1 Z0 ahorizontal. # {& w1 e v, F4 o( _) u, U3 F哪位大侠可以帮忙说下上面这段是什么意思 9 o0 x7 i# u, \# M( r小弟看了半天还是没搞明白作者: UL499 时间: 2009-12-2 12:31
电动机的不懂，不好意思作者: kuiyin01 时间: 2009-12-2 12:32
尤其是最后一句These tools are only tested in the upright position where the platen is ' k' R8 l% E6 {5 I- @horizontal. 9 m- @8 L" R. t. a器具垂直放置的话 底盘不也是垂直的吗？怎么会是水平的呢？作者: milighost 时间: 2009-12-2 14:55
整段的意思就是除了砂带机，其余被60745－2－4涵盖的砂光机在做耐久的时候，都要将砂纸反装在底板上（如果是抛光盘就正常安装），然后就将机器竖直向上放在一块钢板上运行。最后那几句话实际上是针对通用要求说的，因为通用要求里面工具是三个方向运行的，而砂光机只是一个方向，就是竖直向上。当机器竖直向上，底板当然是水平的。再仔细想想？
