振簧仪表：vibrating reed instrument振簧系仪表：vibrating reed instrument 振簧式频率计：Frahm frequency meter,reed frequency meter,vibrating-reed frequency meter,vibrating-reed meter ..
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... vibrating reed frequency meter ==> 振簧式频率计 vibrating reed instrument ==> 振簧仪表 vibrating reed relay ==> 振动式继电器 ...