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有个专门的决议说这个问题:- {5 v c) V$ \6 X/ l) h( k
COLLECTION OF OSM/HA DECISIONS
% H# q7 \+ v' \, _4 j( C E oStandard:5 S/ M+ ]" ?# ?/ R( i
EN 60335-1/1988
9 ^& z8 k- M' A* A0 JSub clause: 2.2.10 Sheet n. OSM/HA 011 ?2 z i6 B5 x" f7 @+ N
Page 1(1)
) I' }3 ~* u6 T# w- j7 e6 vSubject: Definitions Key words:0 {4 Y' l# Z1 i, _3 Y! C
-special purpose tools Decision taken at the5 t# N3 v! ?1 d" W
8th meeting 1994
$ _# n5 f( z `; Z$ K9 s" f7 vQuestion: What is a special purpose tool?
- c$ ^/ o" g, h7 v1 _Decision: The examples of screws shown in the figure are considered as having a head7 T! M0 ]/ K/ K0 k! |2 ~/ L5 a
for which a special purpose tool is needed.
; q% a8 Z- M. Q$ S; cExplanatory notes:9 `2 B; @6 B8 b. H, b: r
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