BACKGROUND & OBJECTIVE: The occult lymph node metastasis rate of supraglottic cancer is high, and the treatment of occult lymph node metastasis is important.
背景与目的:声门上型喉癌的隐性淋巴结转移率高,是此类喉癌诊治的重点之一。
A palmtop apparatus detecting organophosphorus pesticide residues;
用于农药残留检测的掌上型有机磷农药检测仪
Palm GPS for Engineering Mapping;
掌上型GPS在工程测绘中的应用