Yeast has been used to study the toxicity and tolerance of metal as a model bio-system.
酵母是研究生物中金属毒害及其抗性机制的优良模式系统。
Amino acid is the building block of protein and its adsorption on the surface of metal provides the model for the study of the interaction of protein with metal.
氨基酸是蛋白质的构成单元，它在金属表面的吸附为研究蛋白质同金属相互作用奠定了基础。
Based on the study of features of sheet metal parts and Zero Thickness Hypothesis, a new mechanism of naming and identifying topological entities of a feature model is proposed in this paper.
本文在对钣金件特征研究和“零厚度”假设的基础上，提出了一种钣金件拓扑元素命名和辨别的新方法。
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