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- The experiment was carried out to evaluate effects of covering wheat straw in apple orchard and apricot orchard on soil humus composition, microflora and soil enzyme activities. 摘要在杏园和苹果园覆盖麦草，研究其对土壤腐殖质组成、微生物区系及土壤酶活性变化的影响。
- Humus composition of black soil and its organo-mineral complexes under different fertility level 不同肥力条件下黑土及其有机无机复合体的腐殖质组成
- Keywords petroleum hydrocarbon-contamination;total soil humus;combined humus;humus composition;humic acid;humin; 石油污染;全土腐殖质;结合态腐殖质;腐殖质组成;胡敏酸;胡敏素;
- He sweated out his composition in several hours. 他苦干了几个小时才写出了作文。
- He wrote a composition or (he) read an essay. 他写作文或读散文。
- His composition is far superior to mine. 他的作文比我的好多了。
- A slow, mournful musical composition. 庄重悲哀的乐曲节奏缓慢，庄重悲哀的音乐作品
- He has a touch of madness in his composition. 他有点疯疯癫癫。
- I'd like to have your advice on my composition. 我想请您对我的作文作些指导。
- She looked at her son's composition with a frown. 她对儿子的作文皱眉头。
- Of, relating to, or derived from humus. 腐殖的腐殖的，与腐殖有关的，从腐殖中提取的
- The composition of the report took two months. 写这份报告花了两个月时间。
- We examined the rock to find out its composition. 我们检验了这一石块,想弄清它的构成成分。
- He has a touch of stubbornness in his composition. 他脾气有点倔。
- Of,relating to,or derived from humus. 腐殖的腐殖的，与腐殖有关的，从腐殖中提取的
- Radishes prefer sandy soil that's rich in humus . 我们使用的是樱桃萝卜, 一种春萝卜。
- You've made several grammatical mistakes in the composition. 你的作文中犯了几处语法错误。
- Hi-rich humus, the soil of Micro. 喜富含腐殖质、微酸性的土壤。
- A composition in verse rather than in prose. 诗篇以诗歌而非散文形式的文章
- A composition written or arranged for these bells. 钟乐为在排钟或钟琴上演奏而谱的曲
