【名词&注释】
传动装置(transmission)、液力偶合器(hydraulic coupling)、输送机减速器(scraper conveyor deceleration)、符合规定(conforming to prescribed)、矿井机电设备(mine machine and electricity equipment)
[单选题]《煤矿矿井机电设备(mine machine and electricity equipment)完好标准》对液力偶合器规定:易熔合金塞(),安装位置正确,并符合规定。
A. A、无损
B. B、完整
C. C、易熔