【单选题】下列( )状态应按正常使用极限状态验算。
【单选题】186 An acceptance control chart has limits that are based on the spec. limits for the product rather than limits which differentiate between random and assignable causes. Under which of the following ...
B.
When the engineering tolerance on a dimension greatly exceeds the natural dispersion of the manufacturing process B. When the number of samples outside the current control chart limits become too costly and cumbersome to investigate.
C.
When a process is subject to constant but stable tool wear.
【简答题】简述“机械设计基础”课程的主要研究对象和内容。
【简答题】传统的机械设计与机械可靠性设计,都是以零件或机械系统的 作为其主要研究内容。
【单选题】体会下列人物台词中的破折号的不同作用,其中分析正确的是 1周朴园:你一一你贵姓? 2周朴园:你的生日一一四月十八一一每年我总记得。 3鲁侍萍:不是一件......还有一件一一 4周朴园:我看你的性情好像没有大改,一一鲁贵像是个很不老实的人。