可倾平口钳只能在垂直方向回转，适用于万能工具铣床、工具磨床等。( )
参考答案：错
27. _____ in a friendly way, they both were satisfied with the result.
A．Having been settled their quarrel
B．Their quarrel being settled
C．Their quarrel settled
D．After their quarrel settled
振动式密度计在水平管道上安装时，旁通管路应位于主管的（）位置。
A、平行
B、下方
C、上方
D、垂直
