duo-binary system

基本解释定镜准准仪

网络释义

1)duo-binary system,定镜准准仪2)dumpy level,定镜水准仪3)Fischer level,费舍尔[定镜]水准仪[测]4)prism level,棱镜水准仪5)tube-in-sleeve alidade,转镜照准仪6)range-finder scope,测距仪瞄准镜