对于风力作用下所引起的桥梁主梁抖振反应，通常采用全桥风洞试验或断面模型风洞试验配合数值分析进行评估。
Generally, either the full bridge model wind tunnel test or section model wind tunnel test with analytical procedure is used to evaluate buffeting responses of Bridges.
采用马歇尔试验配合比设计方法分别对TLA改性沥青混合料和基质沥青混合料进行了配合比设计并对其路用性能进行了检验。
Marshall test design methods of asphalt mixtures are used to design the TLA modified asphalt mixture and its base asphalt mixture respectively and their road performances are tested.
医药厂商们在得到FDA的批准前，并不需要进行所谓的临床试验，因为这种试验着实花费不菲，需要数千名患者的配合，以观察诸如心脏病等突发疾病的发生率是否有所降低。
They have not had to conduct so-called outcome or events trials beforehand, which are expensive studies that involve thousands of patients and track whether episodes like heart attacks are reduced.
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