The background of its heat recovery, technological reform, process calculation and economic technology effects are described and analysed in this paper.

文章讲述了常压塔顶循环回流取热的背景、技术改造方案、工艺计算过程和技术经济效果。

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The paper outlines the background for developing the calculation system of bulk grain loading for general cargo ship, the function of the system and its application in practice.

本文主要介绍开发杂货船散谷装运配载计算系统的背景、过程以及该系统的主要功能。 对该系统在实践中的运用情况及其特点也作了简单阐述。

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Background monitoring system is composed of YanHua industry control machine and PCI based data boards which guarantees the sampling data reliability and implements the real time pharos calculation.

数据采集系统平台由研华工控机及基于PCI接口的数据板卡组成，实现了可靠的数据采集和实时相量测量。

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