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17.2 Replacement of the fifth paragraph, except for belt sanders:
$ {8 @# j5 x1 l* q2 UOrbital sanders and polishers, random orbit sanders and polishers, and reciprocating sanders
+ O$ o, T6 C0 V2 B( Kand polishers are operated while the platen, fitted with abrasive paper in reverse position or a) C/ O G9 @' }" J/ |0 o
polishing bonnet as applicable, is resting under the weight of the sander or polisher on a steel
8 J% b* N4 ^2 z6 k7 aplate. The abrasive paper should be replaced as required to avoid direct contact between- [' X5 U5 d. B* T7 K' Z! K
platen and steel plate. These tools are only tested in the upright position where the platen is) N6 H1 t: U: S5 s$ R9 L) u$ C
horizontal.8 R) }0 i* F; c# T1 s
哪位大侠可以帮忙说下上面这段是什么意思
5 Q0 F7 t5 R X$ k. G- i小弟看了半天还是没搞明白 |
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