I 開頭單詞
improvement trade for export [經濟學]加工出口貿易
improvement trade 加工貿易
improvement pedology [地球科學]改良土壤學
improvement in railway technology [經濟學]鐵路技術改造
improvement in 好轉；表示原物有改進
improvement area 改建區(qū)；改良區(qū)
improvement and repair trade [經濟學]改良修理貿易
improvement n.改進，改善，改良，增進，進步
improvemeat 改造
improvemant 改進
improved wool [經濟學]改良毛
improved technologies 改進過的技術
improved products 改進的產品
improved mobile telephone service
improved lumbar-spine-rotating therapy [醫(yī)藥科學]改良旋轉復位法
improved land 有設施用地；改良地
improved kalman-filter [機械工程]改進卡爾曼濾波
improved ground rent [經濟學]提價地租
improved grassland [農業(yè)科學]改良草地[地球科學]改良草地