nonnatural
- 网络非天然的;非自然;违背自然的
nonnatural
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Nonnatural D - amino Acid Bioconversion by Engineered Strains
工程菌生物转化D-型氨基酸的研究
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This paper discusses the effect of nonnatural factors such as agricultural production system and farming practices on soil fertility . Special attention was paid to the effect of soil fertility degradation on sustainable agricultural development .
研究建国以来农业生产体制、耕作方法等人为因素对土壤肥力的作用以及由此造成的土壤肥力退化对农业可持续发展的影响。