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 biologicalbalance 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。
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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.
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.