soil ameliorant 土壤改良剂
ameliorant t 改良物
ameliorant combination 改良剂组合
acid ameliorant 酸性改良剂
bread ameliorant 面包改良剂
lime ameliorant 石灰改良
ameliorant of quality 品质改良剂
base oil mobility ameliorant 原油流动性改进剂
Polyacrylamide(PAM),as an ameliorant of soil,can immobility surface soil and reduce the runoff,to preserving nitrogen in the soil at utmost.
PAM(聚丙烯酰胺,Polyacrylamide,简称PAM)作为土壤改良剂,能固定表土、减少径流,使氮素最大程度的保留于土壤。
参考来源 - PAM对紫色土坡地氮素迁移淋失的控制效应·2,447,543篇论文数据，部分数据来源于NoteExpress
The new desert ameliorant , successfully trial - produced by Jiangxi Yitang industry Co.
江西伊塘实业公司试制成功新型沙漠改良剂，并获得国家专利。
The study was conducted to investigate the effects of the compound meat quality ameliorant on carcass traits, organ coefficient and muscle composition of meat ducks.
研究酵母硒和茶多酚配伍的复合肉质改进剂对育成鸭屠宰性能、脏器系数和肌肉成分的影响。
It was to analyze and compare the difference between searching engine classify and traditional classify in different aspect, and put forward ameliorant opinion in Internet classify.
本文就分类搜索引擎与传统分类法体系所存在的差异，从不同的角度进行分析和比较，并提出了网络分类法的改进意见。
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