这个to应该怎么理解? definition: transverse [adj ] at right angles to the long axis of any common part.(与某一部件的长轴成直角---- 垂直) transverse plane to the longitudinal axis of the tube= the plane transverse to the longitudinal axis of the tube a circumferential notch on a transverse plane to the longitudinal axis of the tube 在与管子纵轴垂直的平面上开个圆槽, [ ]查看更多