Heater operation of steam turbine thermal system will effect greatly on unit's economy.

汽轮机热力系统中的加热器的运行情况，对机组经济性有较大的影响。

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We urge you to read all of the instructions thoroughly before attempting the installation or operation of this water heater. This manual should be kept for future reference.

我们要求用户在安装或使用本热水器之前，阅读本说明书的所有内容。请妥善保管本手册，以备将来参考。

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Evaluating exactly and fast heat economy of unit caused by heater terminal temperature difference is significant meaning for the design, operation and repair of thermodynamic system.

准确而快速地评价各级加热器端差的运行热经济性，对热力系统的设计、运行和检修具有十分重要的意义。

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Better yet, it features a "hard drive heater" for startup and operation in freezing temperature and enough internal diagnostics to prevent damage in extreme cold and heat.

ENGADGET: Motorola's rugged ML910 laptop and MW810 mobile workstation