* Q3 x, c# R; ~" J* [; E3 i1 {7 J6 b有文件指明吗?作者: FrankXu 时间: 2022-12-17 11:51
7.9 Unless it is obviously unnecessary, switches which may give rise to a hazard when , x" O- g7 w3 \: d; d/ x& [
operated shall be marked or placed so as to indicate clearly which part of the appliance they ( n) }: z: Z, {- u% x, q' scontrol. Indications used for this purpose shall, wherever practicable, be comprehensible 8 j e' q) d/ L, d4 V% q6 R
without a knowledge of languages or national standards.作者: 浪漫罗丹 时间: 2024-10-10 11:49
开关都是需要标识的