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vac
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*[væk]\nn. 休假, 真空吸尘器\n【电】 真空
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详细解释：
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以下为句子列表：
英文: Accommodation The hotel's clean and comfortable guestrooms feature DDD &IDD telephone, cable TV, free broadband internet access, electronic locks and individual HVAC units.
中文: 客房酒店客房古朴典雅、清洁舒适，配有国内、国际直拨电话、卫星电视，免费宽带上网，电子门锁及独立温控系统，房间内完备的设施将给宾客提供快捷国际化的服务。
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英文: Aiming at the problems of smoke control and HVAC fire protection in civil building design, analyses some provisions in the current national standards and codes for smoke extraction in inner passages, setting of fire dampers in HVAC systems and setting of
中文: 摘要针对民用建筑工程设计中遇到的防排烟及通风空调系统防火问题，分析了现行国家标准关于内走道排烟、通风空调系统防火阀设置、地下室及半地下室竖向疏散通道正压送风系统设置等的相关规定，并提出了个人见解。
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英文: Analyses the main malfunctions of HVAC systems and represents some design principles to ensure room non-positive pressure in the worst case, namely the exhaust system breaking down and the standby exhaust equipment switched on automatically.
中文: 分析了系统运行中的主要故障，给出了最不利状况即排风系统停机故障、排风设备自动切换时，避免房间出现正压的部分设计原则。
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英文: Are you using HVAC (Heating Ventilating and Air Conditioning) controls to maximize energy savings?
中文: 是否采取控制HVAC（暖通空调系统）来最大限度的节能？
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英文: At the international exhibition of HVAC products in 2002,a senior engineer one of the first batch who engaged in domestic HVAC product imports distressed Many developers have spent about five or six thousand yuan to buy wall-mounted boiler but they forget
中文: 在2002北京国际暖通产品展销会的专题报告上，暖通业内第一批做进口家用暖通产品一位高工的痛心讲到“许多开发商花了大约五六仟人民币来采购进口壁挂炉，却忘了数百元的房间智能温控器。
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