present serviceability的例句大全

Road roughness is both important parameter of Present Serviceability Index, abbreviation is PSI and important reference drawing running criterion of proving ground.

同时，不平度是道路维修诊断技术（Present Serviceability Index，缩写为PSI）的重要参数，车辆营运道路的路面不平度也是试验场道路设计和试验规范制订的重要依据。

High-strength steel is widely used at present. As destination of engineering design, not only safety but also serviceability must be under control.

目前国内外均在积极地、逐步地推广应用高强钢材，工程设计从主要控制安全性趋于既要控制安全性又要控制适用性。