原帖由 睿智 于 2007-12-8 19:10 發(fā)表
they also shall be constructed so that the indicator cannot be misassembled
to give an incorrect indication as to whether the valve is open or closed( p/ Q6 L2 [: f) _9 a0 U, Q
從后面incorrect 看出是錯裝
原帖由 睿智 于 2007-12-8 19:10 發(fā)表
they also shall be constructed so that the indicator cannot be misassembled
to give an incorrect indication as to whether the valve is open or closed( p/ Q6 L2 [: f) _9 a0 U, Q
從后面incorrect 看出是錯裝
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