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我觉得反推不一定正确。并且这段话出现在table 3中,我的理解只适合温升。并且适用于把手和手柄之类的metal.在table 3中"metal"共出现两次。Surfaces of handles, knobs, grips and similar parts which are continuously held in normal use
$ m* L: i0 R' N( i* q1 ~0 U7 U: c6 Z(e.g. soldering irons)8 n2 d" f" ^4 \( K; f. w
-of metal– of porcelain or vitreous material3 K6 G7 f% {# J5 e' D$ e% L
– of moulded material, rubber or wood
, Q$ c* Y. s* i# w& hSurfaces of handles, knobs, grips and similar parts which are held for short periods only in
4 ]* _* b' }- Mnormal use (e.g. switches):5 ^& f: Q2 a& @8 Z, U, F
– of metal! Z1 o( V3 K, ~7 S: `. W& y. y
– of porcelain or vitreous material, Z& A3 ]) ]4 I- t% {$ G* Y
– of moulded material, rubber or wood |
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