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17.2 Replacement of the fifth paragraph, except for belt sanders:5 n6 d5 B% B. ~
Orbital sanders and polishers, random orbit sanders and polishers, and reciprocating sanders5 S/ t. c2 t$ N7 I* {
and polishers are operated while the platen, fitted with abrasive paper in reverse position or a
) p ~. D1 q5 ~- F9 S4 F0 k; Spolishing bonnet as applicable, is resting under the weight of the sander or polisher on a steel
* ~9 L& d# H3 B7 z% a6 H& S2 \, L2 x& }% Gplate. The abrasive paper should be replaced as required to avoid direct contact between: k( c! V3 } f
platen and steel plate. These tools are only tested in the upright position where the platen is
. b1 ^' C- B" v* y" @& bhorizontal.: ]3 B3 _6 B4 j6 _1 Z% n$ j$ P
哪位大侠可以帮忙说下上面这段是什么意思
7 i: I9 Z' [3 `小弟看了半天还是没搞明白 |
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