Objective To study the status, nexus, possible reason and clinical infection of the pleomorphic adenoma in parotid and the gland system shift of parotid simple leaf.

目的研究腮腺多形性腺瘤与腮腺腺体移位的状况、关系、可能原因及临床的影响。

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Objective: To study the status, relation, possible reason and clinical effect of the pleomorphic adenoma in parotid and the gland system shift of parotid simple leaf.

目的：研究腮腺多形性腺瘤与腮腺腺体移位的状况、关系、可能原因及临床影响。

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Many plants follow simple recursive formulas in generating their branching shapes and leaf patterns.

很多植物在生成分枝形状和叶片图案时遵循简单的递归法则。

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