目的了解不同类型的髋关节假体柄与骨的接触面积，并探讨接触面积的大小与假体松动的关系。
Objective to elucidate the contact areas of stem-bone of the different type prostheses and probe into the relation between the contact areas and prosthesis loosening.
存在于公司和客户之间的关系可以划分为四种类型：亲密关系、面对面的关系、疏远关系和很少接触的关系。
Between the company and customers there are four kinds of relationship: intimate relationship face to face relationship distant relationship and less-contact relationship.
存在于公司和客户之间的关系可以划分为四种类型：亲密关系、面对面的关系、疏远关系和很少接触的关系。
Between the company and customers there are four kinds of relationship: intimate relationship face to face relationship distant relationship and less-contact relationship.
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