?刀形继电器

... knife-edge interferometer 刃型干与干预干预仪 knife-edge relay 刀形继电器 knife-edge surface viscosimeter 刀刃面粘度计 ...

?刃式继电器

... knife-edge refraction ==> 刃形折射 knife-edge relay ==> 刃式继电器,刀口继电器,刀形继电器 knife-edge relay contact ==> 刃形接点 ...