词汇	band groove
释义	band groove 军弹带刻槽
随便看	normally open circuit normally open consumption normally open contact normally-open contact normally open contactor normally open contacts normally open control element normal ly open control element normally opened normally opened brake normally opened contact normally open ed contact normally opened relay normally opened track circuit normally open gate normally openhydraulic normally open interlock normally open/normally closed normally openpneumatic normally open push button switch normally open rate normally open solenoid valve normally open switch normally open track circuit normallyopen valve