单级: single stage; single level; ...磁头: head; magnetic read head单级: single stage; single level; single step磁头: (magnetic) head; magnetic read [write; recording] head超级磁盘: superdisk超级磁泡: super bubble祖级磁带: tape grandfather; tape intermix单级氨: single stage ammoniawater a orption refrigerating machine; single stage ammoniawater absorption refrigerating machine单级泵: single pump; single stage pump; single-stage pump单级的: one-stage; single staged; single step; singlepole; single-stage; singlestep; unipolar单级阀: one valve单级机: single level machine单级模: single station die; single-station die单级式: single stage type单级数: single series单级梯: one-step foot-stool单级制: single stage system磁头到磁头: head to head超级磁带控制单位: hyper tape controlunit串级磁镜反应堆: tandem mirror reactor多级磁通计数器: multilevel flux counter阶梯磁盘, 升级磁盘: staging disk磁头板: headplate磁头臂: access arm; head arm磁头场: head field
