tree-ring是什么意思

网络释义

1)tree-ring,树木年轮 TR2)thermoplastic resins,热塑性树脂 TR3)thermosetting resins,热固性树脂 TR4)true resin,真树脂;天然树脂 TR5)TR-FTIRS,TR-FTTRS6)Q T ratio,Q-Tr