Under the new rule, by 2015, existing boilers must switch from No. 6 oil to a low-sulfur version of the No. 4 heating oil or to an equivalent cleaner fuel.

按照这项新法规，截止2015年，现存锅炉必须由6号燃料油换成4号低硫型燃料油或与之相当的较为清洁的燃料。

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We will carry out a full range of key energy-saving projects, including upgrading of low-efficiency coal-fired industrial boilers and furnaces and combined heat and power facilities.

全面实施低效燃煤工业锅炉（窑炉）改造、区域热电联产等重点节能工程。

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The application of horizontal dense-dilute technology in some boilers has resolved many problems, such as the fire, self-supporting burning and burn-up problem of low volatile coal.

水平浓淡燃烧技术在一些电站锅炉上的应用，很好地解决了低挥发分煤的着火、稳燃和燃尽的问题。

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