FRabbr.故障率（=failure rate）abbr.故障记录（=faillure record）abbr.故障报告（=failure report）Frevil弗雷维尔

1. Experiments of diamond turning of stainless steel are taken on a fine lathe by utilizing ultrasonic vibration.
   对刀具的振动频率和振幅的影响进行了理论分析。
2. In this article, the molecular vibration frequencies are determined by Laman scatters experiment, then the molecular structure is obtained.
   该文通过样品实验，用拉曼散射测定分子的振动频率，进而分析出物质的分子结构。