I 开头单词
improvement trade for export [经济学]加工出口贸易
improvement trade 加工贸易
improvement pedology [地球科学]改良土壤学
improvement in railway technology [经济学]铁路技术改造
improvement in 好转；表示原物有改进
improvement area 改建区；改良区
improvement and repair trade [经济学]改良修理贸易
improvement n.改进，改善，改良，增进，进步
improvemeat 改造
improvemant 改进
improved wool [经济学]改良毛
improved technologies 改进过的技术
improved products 改进的产品
improved mobile telephone service
improved lumbar-spine-rotating therapy [医药科学]改良旋转复位法
improved land 有设施用地；改良地
improved kalman-filter [机械工程]改进卡尔曼滤波
improved ground rent [经济学]提价地租
improved grassland [农业科学]改良草地[地球科学]改良草地