An instance variable and an if statement are used skillfully in the process of design, which solves the problem of picture flash.
在设计过程中，巧妙地使用了一个窗口实例变量和一个条件语句，解决了图片闪烁的问题。
Cold rolling technology is applied to ring parts extensively. In the process of numerical simulation and optimization of cold rolling, roundness is a key object variable of the design.
冷辗工艺广泛应用于环件的加工，在冷辗环数值模拟与优化过程中，圆度是重要的目标设计变量。
The design process about a variable geometry turbocharger is described in this paper.
介绍了一种可变几何涡轮增压器的设计过程。
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