permanent job固定工作permanentadj.永久的；持久的n.<口> 烫发permanent synchronous machine永磁同步电机permanent luminescent pigment恒效发光颜料permanent-income hypothesis长期收入假设permanent tension convolution恒张力卷绕Permanent Naval Uniform Board海军制服常设委员会permanent disablement benefit永久性残疾补助金permanent-magnetic property永磁性质permanent dual lumen catheter带Cuff长期静脉导管permanent-completion packer永久完井封隔器permanent/transitory model永久／暂时模型