该控制方式功能丰富、适应能力强、可靠性高，能大大提高发电厂输煤系统运行的自动化水平。

This way of controlling, of plentiful function, of strong adaptability, of high reliability, can greatly improve the automation in coal transmission system.

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摘要 口腔颌面-头颈部是黏膜黑色素瘤的高发部位，该病侵袭性强，易发生区域和远处转移，预后很差，临床治疗有很大的难度。

Abstract : Oral and maxillofacial-head and neck are region with high incidence of mucosal melanoma. The neoplasm is rare but aggressive, with high incidence of regional or distant metastasis.

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