This article presents the corrosion rule and characteristics of the HP heat exchanger tubes in urea plant and points the key for corrosion inspection of the tubes.

介绍尿素高压热交换器列管的腐蚀规律和特点，指明列管腐蚀检测的重点。

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Just as the HP-35 calculator replaced the manual slide rule forever, inkjet technology spelled the end for the noisy dot-matrix printer.

如同HP - 35计算器彻底代替了手工计算尺，喷墨打印技术终结了吵闹的点阵列打印机。

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Patricia Dunn, HP's chairwoman, forgot the cardinal rule of institutional management--nothing can be done to put a genie back in the bottle.

FORBES: Intelligent Investing Briefing Book