at presentation

基本解释

There is always the danger of the "meeting specialist" who is adept at presentation.
碰上擅长做报告的“会议专家”的危险总是有的。
All patients had a negative cardiac troponin I (cTn-I) result at presentation and cTn-I was used as the outcome measure.
所有患者发病时的心肌肌钙蛋白I（cTn-I）的检验结果都呈阴性（cTn-I用来做效果测试剂）。
The sensitivity of IMA at presentation for an ischemic origin of chest pain was 82%, the specificity was 46%, the negative predictive value was 59%, and the positive predictive value was 72%.
IMA测试在缺血造成的胸痛发病时诊断的灵敏度为82%，阴性预测值为59%，阳性预测值为72%。

She is remembered still for her commanding presentation at the hearing and deep knowledge of constitutional issues.
I've asked them to give a brief presentation about the Masters of Applied Positive Psychology at U Penn, the only master degree, well the first master degree in the world-- there are a couple of others now.
我请他们简单介绍一下,宾州大学应用积极心理学硕士课程，唯一的硕士学位，世界上第一个硕士学位-,目前还有其他几个。
哈佛公开课 - 幸福课课程节选
He also made a presentation at a medical conference that some now say hinted that he had militant views.

Patients with high BMIs or with chest pain or pressure at presentation were less likely to have a false-positive activation.
FORBES: All Dressed Up And No Place To Go: False-Positive Activation Of The Cath Lab For Primary PCI