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有个专门的决议说这个问题:
: X, g$ Q6 K0 v+ y( w9 Z1 E) `COLLECTION OF OSM/HA DECISIONS
9 r/ F6 U! R1 e5 G' M8 fStandard:7 L4 n9 D+ S- I8 Q' I3 O1 Z& R% T
EN 60335-1/19882 }3 ?0 A S! C$ c. e6 {- g5 i
Sub clause: 2.2.10 Sheet n. OSM/HA 01
- q0 Z1 i0 u2 ~& {9 ]Page 1(1)
" ~/ V! r' R3 m8 q- f9 ?Subject: Definitions Key words:
. c9 n# F% a9 ]- a6 X5 B-special purpose tools Decision taken at the
) I! v+ H: i; @% d5 I# H$ ]8th meeting 1994
% o1 u0 |& k% q, ?9 NQuestion: What is a special purpose tool?
0 `+ z* l1 u; V; ^1 `! ZDecision: The examples of screws shown in the figure are considered as having a head
k7 M7 F% {' ?" p0 ofor which a special purpose tool is needed.' a& h. p/ U" L5 E. v* w
Explanatory notes:
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