覆盖操作 overlapping operation

液压操纵舱口盖 hydraulically-operated hatch covers

行李箱盖操纵件 real hood control

操纵阀盖垫密片 application valve cover gasket

钢索操作舱口盖 wire-operated hatchcover

操作阀盖 operating valve cap

操纵阀压盖 control valve gland

比较操作符覆盖 Relational Operator Coverage

操纵台盖 console cover