公开课网15 Chapter 15 Air-conditioning and Ventilating.pptx

15 Chapter 15 Air-conditioning and Ventilating.pptx

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Chapter 15Air-conditioning andVentilatingThescienceofair-conditioningmaybedefinedasthatofproviding
舒适度取决于湿度,根据需要空调对空气加湿或者除湿。通过控制空气流动,空调将新鲜空气送入室内,并将不新鲜空气排出。从空气中去除污物和尘埃使空气更健康。Comfort depends partly o
In winter-A supply of air which has been cleaned andwarmed.As the warming lowers the relative humi

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var arr=[]; MIP.watch('t', function (newVal, oldVal) { var img_tj = MIP.getData('img_tj'); var list = MIP.getData('list'); var t = MIP.getData('t'); var fd = MIP.getData('t'); var fdz = 'tp' + fd; var tpp = MIP.getData(fdz); var fdl = parseInt(fd)+1; var fdlz = 'tp' + fdl; var tppl = MIP.getData(fdlz); if (arr[fd] !== 'aaa' && newVal < img_tj){ MIP.setData({list : list.concat({n : tpp}),img_sy : '还剩余' + ( img_tj - newVal - 1) + '页'}); arr[fd] = 'aaa'; }else{ MIP.setData({list : list.concat({n : tpp}),img_sy : '已经加载完毕!',xyy : '欢迎进行下载!'}); } });