文章结合工程实例，阐述无负压供水技术的应用。
The article explains the applications of no-negative water supply technique, based on the actuality of engineering.
给水系统：采用无负压供水系统，供水机房设于地下室内；
Water Supply System: non-negative pressure water supply system, water room will be located in the basement;
对无负压供水技术进行了分析，指出了设计或使用不合理时可能出现的问题；提出了正确使用无负压供水技术的工程措施。
The regions adaptive to "non-negative pressure" pressure water supply device were analyzed, and the inadaptable regions with insufficient water source for water supply capacity were presented.
安全性高：负压燃烧、不逆火、无爆炸之虞，且断水、断电、自动报警，采用PC控制。
Safe: negative pressure combustion, not against fire, without the danger of explosion, and water, electricity, auto alarm, using PC control.
特殊设计的数字式压力显示，精密负压调谐，外置控制脚踏开关和精心选配的低噪声无油膜式泵，使产品更方便操作控制和使用。
The sophisticated designs of digital pressure display, precise negative pressure adjustment, and foot switch control make this mute oil pump more convenient to manipulate.
无围压射孔技术就是研究在高负压甚至无围压条件下实现射孔完井。
To solve this problem we developed a high negative pressure and confining pressure-free perforating process.
结果术后使用持续封闭负压引流的33例腰椎结核病人伤口均一期愈合，随访3 ~28个月，无结核病灶复发。
ResultsAll of 33 cases using vacuum sealing drainage postoperative had a healing wound. During the following up for 3 to 28 months, no recurrence of tuberculosis lesions was found.
结果术后使用持续封闭负压引流的33例腰椎结核病人伤口均一期愈合，随访3 ~28个月，无结核病灶复发。
ResultsAll of 33 cases using vacuum sealing drainage postoperative had a healing wound. During the following up for 3 to 28 months, no recurrence of tuberculosis lesions was found.
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