amelioration的例句（amelioration在句子中的用法）

• This paper studies the constitute measure, the emulation and amelioration of system. 研究了系统的建立方法及软件的仿真与改进.
• I've heard that Liebig has made some wonderful discoveries in the amelioration of soils. 我听人说利比黑在改善土壤这方面有过很了不得的发现.
• One of the most startling proposals for amelioration, in fact, came from Wall Street. 实际上, 最令人注意的改良建议之一出自华尔街.