求翻译：热力系统中水的品质是影响发电厂热力设备（锅炉、汽轮机等）安全、经济运行的重要因素之一。没有经过处理的天然水含有许多杂质，如不经过处理或处理不合格就直接送给锅炉，会引起热力设备结垢、腐蚀、积盐，从而导致热力设备的使用年限降低、年利用时间（h）减少，检修工作量和检修费用增大等问题。水处理工艺选择不当，不仅增加一次性投资和运行费用，严重的还影响热电厂的正常运转。因此锅炉补给水工艺选择、设备选型、运行管理是决定热电厂能否长期稳定运行的关键因素之一。是什么意思？

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Heat water in the system of the Plant quality is affected (boiler, heat equipment such as gas turbine) security, the economy one of the most important of these factors. There is no processed natural water contains many impurities, such as is not processed or not qualified to direct to boiler, it wil

In the thermodynamic system the water quality is affects the power plant thermal energy equipment (boiler, steam turbine and so on) the security, one of economical movement important attributes.Has not included many impurities after the processing natural water, like not not qualified on directly gi

Influence water quality is in power plant thermodynamic system of thermal power equipment (boilers, turbines) security, one of the important factors in economic operations. No treated water contains many impurities, if not treated or processed are not qualified directly to the boiler can cause scali

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