常闭的 normally closed
常闭辅助触点 normally closed auxiliary contact
常闭触点 normally closed contact
常闭接触器 normally closed contactor
常闭控制元件 normally closed control element
常闭触头 normally closed interlock
常闭按钮开关 normally closed push button switch
常闭铵钮开关 normally closed push button switch
常闭阀 normally closed valve
正常载荷状态 normally loaded condition
常开的 normally open
常开触点 normally open contact
常闭辅助触点 normally closed auxiliary contact
常闭触点 normally closed contact
常闭接触器 normally closed contactor
常闭控制元件 normally closed control element
常闭触头 normally closed interlock
常闭按钮开关 normally closed push button switch
常闭铵钮开关 normally closed push button switch
常闭阀 normally closed valve
正常载荷状态 normally loaded condition
常开的 normally open
常开触点 normally open contact
常开接触器 normally open contactor
常开控制元件 normally open control element
常开按钮开关 normally open push button switch
常开阀 normally open valve
常开的 normally opened
舵端防松销 norman
舵头水平销 norman
舵端防松销;缆柱销将军柱销 norman
缆柱销 norman pin
舵端防松销 norman-bolt
比利时标准 Norme Belge
法国标准 normes Francaises
北 norr
北 norra
黑德鲁航次租船合同 Norsk Hydro Voyage Charter Party
氢化物航次租船合同代号 Norsk Hydro-Elektrisk kraelstofatieselskab 1926
挪威标准 Norsk Standard
挪威标准 Norske standard
挪威船级社 Norske Veritas
北风 norte
北 north
北北向 north
从北方走 north about
北非洲 North Africa
北美北美洲 North America
北美谷物出口协会 North American Export Grain Association
北美化肥运输租船合同 North American Fertilizer Charter-Party 197888
年北美谷物租船合同 North American Grain Charter Party 1973Inc.)1973
北美谷物运输租船合同 North American Grain Charterparty
北美高压 North American high