1) improve well
改良水井
2) Improvement for drinking water supply
饮水改良
4) Improve the water quality
改良水质
5) gene engnieering
水稻改良
1.
potato have commercially released ,Yhis article reported the advances om the study of improvement of rice through gene engnieering including improvement of the resistance to insects ,virtus and abiotic stress etc.
本文就基因工程在水稻改良方面的研究作一简要综述，主要包括抗病虫性改良、抗逆性改良和品质性状改良等方
补充资料：改良
①去掉事物的个别缺点，使更适合要求：～土壤 ㄧ～品种。②改善。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条