Blending of tradition and modernity, and in a quality concern of this wine and of the respect of the environment, some principles are applied: preservation of the biological balance of the soils.
融合传统与现代技术，关注酒质量和生态环境。并采用生物平衡的方式保存土壤养分。
The methods of measuring the biological value of feed phosphorus including balance experiment, slope rate method, tri - index method, in vitro solubility and in vitro dialyse methods were reviewed.
本文就目前关于饲料中磷的生物学效价评定的方法即平衡试验法、斜率比法、估测法、三项指标综合法、体外溶解度法、体外透析法作一综述。
The giant salamander is a second-grade animal under state protection. Research on the animal is of great biological significance to protecting rare animals and keeping an ecological balance.
大鲵是国家二级保护动物，对大鲵进行研究在保护珍稀动物和保持生态平衡方面具有重要的生物学意义。
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