This paper presents a design method and feature of pre-processing block in bioplar IC layout data extractor.

本文介绍IC版图数据提取器中预处理模块的设计方法与特点。

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During design of the layout on diesel engine, we performed one-dimensional flow calculation for turbocharger systems, optimized the valve timing and pre-selected the turbocharger.

在柴油机方案设计时，对涡轮增压系统进行了一维流动计算，优化了气门正时，并预选了增压器方案。采用已知的同类机型的放热率进行了缸内过程的计算。

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Through carefully analyze and optimize the structure of circuit, now the circuits have been designed, pre-layout simulation and portion of layout design have been completed.

对电路结构进行了仔细分析和优化设计，完成了电路设计和前仿真和部分版图设计。

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