flexible PCB柔性印刷电路板flexibleadj.柔韧的；灵活的；易弯曲的；可变通的flexible pipeline柔性管线flexible subsWate柔性衬底Flexible abutment柔性台背flexible drafting柔性牵伸flexible workflow柔性工作流flexible resource柔性资源flexible oil barge挠性水运油囊flexible sandstone柔性砂岩flexible substrate柔性衬底flexible flow shop柔性流水作业