常压燃烧器 meaning in English

atmospheric burner
normal pressure burner

Gas - fired central heating boilers - type b11 and b11bs boilers fitted with atmospheric burners of nominal heat input not exceeding 70 kw
燃气集中供暖锅炉.装有标称输入热量不超过70kw的常压燃烧器的b型和b型锅炉
Gas - fired central heating boilers - types b11 and b11bs boilers , fitted with atmospheric burners of nominal heat input not exceeding 70 kw
燃气集中供暖锅炉.装配有标称输入热量不超过70kw的常压燃烧器的b11和b11bs型锅炉