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当防火分区内火灾确认后，应能在（）内联动开启常闭加压送风口和加压送风机。
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空调区的气流组织设计，应根据空调区的（）空气质量、温度梯度以及空气分布特性指标（ADPI）等要求，结合内部装修、工艺或家具布置等确定；复杂空间空调区的气流组织设计，宜采用计算流体动力学（CFD）数值模拟计算。
采用置换通风时，房间净高宜大于（ ）m。
分层空调的气流组织设计，空调区宜采用（ ）。
Listen to the passage and fill in the blanks with the words you hear. Hong Kong Unemployment Rate Rises to 5%Hong Kong’s seasonally adjusted unemployment rate increased from 4.6% in January 2009 to 5% in February 2009, according to 1) carried out by the Census and Statistics Department of the Hong Kong Special Administrative Region Government.The increases in the unemployment rate were mainly seen in the construction, 2) import and export trades,manufacturing and restaurants sectors. As to the 3)rate, decreases were mainly seen in the decoration and manufacturing sectors, and amusement and recreational services sectors.In the near term, the unemployment rate is expected to 4)further, as labor demand remains weak given the economic downturn.Hong Kong Secretary for Labour and Welfare, Mr. Matthew Cheung, said that the labor market had been much affected by the financial tsunami and the 5). He stressed that the Government would continue to do its best to help the affected employees and job seekers.
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