稀松骨质 xī sōng gǔ zhì

DEFINITIONS

  1. cancellous bone
  2. trabecular bone
  3. spongy bone

CHARACTERS

稀 xī rare, unusual, scarce; sparse
松 sōng pine tree; fir tree
骨 gǔ bone; skeleton; frame, framework
质 zhì matter, material, substance