单词	stringofpearls structure
释义	stringofpearls structure n.串珠状结构
随便看	change over switch box changeover switch controller change over switch controller change-over switch controller changeover switch for emergency lighting change over switch for emergency lighting change-over switch for voltmeter change over switching change-over switching change-over switching operation change-over switchthrow-over switch, commutator changeover system change over system change-over system changeover time change over time change-over time changeover timetable change over to change over to manufacture on imported models change-over to manufacture on imported models change over to new ways Change over to US format changeover trial changeover valve