| f typhoid and paratyphoid fever in |
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| 作者姓名： | Guangxi from t |
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| 作者单位： | o 2002 |
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| 摘 要： | laboratory records in this 10 years were analyzed.Results A total of 47 305 typhoid and paratyphoid fever cases were reported in Guangxi this 10 yea
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| 关 键 词： | Data from regular case reporting system and |
rs. Average annual incidence was 10.27/100 000. The highest age spec |
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| Guangxi from,t.f typhoid and paratyphoid fever in[J].Journal Heating Ventilating and Airconditioning,2003(5). |
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| Authors: | ific incidence was in aged - |
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| Affiliation: | ific incidence was in aged 15-19 |
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| Abstract: | According to the Unified National Budget Quanta of Installation Engineering and the standards of boiler water quality, analyses the damage of machine oil and lead oil left in construction to the heating system and other heat users. Gives methods of controlling the oil quantity in boiler water. |
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| Keywords: | boiler heating system construction technique oil pollution boiler water quality standards |
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