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有个专门的决议说这个问题:0 `& e0 |' k, g2 H
COLLECTION OF OSM/HA DECISIONS9 |" b, C+ ]% l1 e( z5 o' z
Standard:2 ]% b) F; t( @" X$ @9 V" e
EN 60335-1/19884 Q9 m% y4 Q$ |' A4 S, q
Sub clause: 2.2.10 Sheet n. OSM/HA 01
6 j, }2 |9 d: C9 V: J; |Page 1(1)
' W- A+ a8 e9 I8 I, J5 P) ~Subject: Definitions Key words:* c8 k( e ?/ N$ @! L, z) M8 \
-special purpose tools Decision taken at the. N( C% t7 i7 Q
8th meeting 1994
! y/ j( s& }9 {+ PQuestion: What is a special purpose tool?
' h& a- p- \4 G2 TDecision: The examples of screws shown in the figure are considered as having a head( ^5 Y0 s. d; i( y1 Z& D
for which a special purpose tool is needed.
0 c1 X6 G. M4 O" d5 wExplanatory notes:2 t4 R1 G3 D: F4 d" y
6 ^, b; ~, }5 \: I6 A
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