fiber electrometer meaning in Chinese

悬丝静电计
悬丝静电器

Interrelationship of quarz - fiber electrometer type exposure meters and companion exposure meter chargers
石英纤维静电计型曝光计和配套使用的曝光计的相互关系
Bases for gm counter tubes - interrelationship of quartz - fiber electrometer type exposure meters and companion exposure meter chargers
盖革-米勒计数管的管座.石英纤维静电计式曝光表和相似曝光表的相互关系