| 释义 |
ptas 释义 abbr. 家庭教师协会(Parent-Teacher Asociations);贸易协定(Preferential Trade Arrangements);多项式时同的近似方案(Polyomial Time Approximation Scheme) 例句 1·A polynomial time approximation scheme (PTAS ) for this problem is presented. 给出了一个多项式时间近似方案(PTAS)。 2·Conclusion PTAS is an easy and safe therapy for aged patients with extracranial carotid stenosis. 结论PTAS是治疗老年颅外段颈动脉狭窄的简便安全有效方法之一。 3·Conclusion: PTAS for the treatment of neck and cranial artery stenosis is safe, easy and effective method. 结论:腔内支架成形术治疗头颈部动脉狭窄是一种创伤小、安全易行、疗效确切的治疗方法。
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