空中英惯用短语:
  • n.  空心甜饼, 空心咸饼, 夹心酥球   profiterole
  •   空心电枢   coreless armature
  •   空心电枢空心衔铁   coreless armature
  •   空心电离室   hollow ionization chamber
  •   空心画板   hollow drawing board
  •   空心矩形尺   open block square
  •   空心石英纤维   hollow quartz fiber
  •   空心砖墙   brick cavity wall
  •   空心硬胶囊   empty hard capsule
  •   空心端铣刀   shell end milling cutter
  •   空心线圈   air core coil
  •   空心线圈   Air-core Coil
  •   空心绝缘管制造   spaghetti tubing applications
  •   空心螺丝   cored screw
  •   空心螺塞和扳手   hollow-head screw and wrench
  •   空心衔铁   coreless armature