单选题
1分
One method of constructing large marine diesel engines and reducing the total engine frame weight is...
One method of constructing large marine diesel engines and reducing the total engine frame weight is through ( )
参考答案: B
参考解析: 注:建造大型船用柴油机时,为减少整台发动机机架的重量,可采用焊接钢板形成分段部件来组装。