方法：对33例常规脑电图（ EEG）正常或无特异性改变的患儿进行了蝶骨电极加过度换气试验（HV）描记后出现痫样放电的病例进行分析。
Methods: Sphenoidal electrodes and HV were done and the epileptiform discharges recording were analysed in 33 children who with normal or non-specific change EEG.
试验表明有每小时只有0.6空气的变化，而许多老房子都可以每小时几换气。
The test showed there are only 0.6 air changes per hour, while many older homes can have several air changes per hour.
研究试验结果表明，分层扫气可减少换气过程的燃料损失，使燃油消耗率大幅度下降；使混合气空燃比的范围加大。
The result shows that stratified scavenging reduces fuel loss during air exchange greatly lowing the fuel consumption rate and enlarging the air-fuel ratio range.
该系列产品适用于电气绝缘材料的耐热性试验，电子零配件、塑化产品之换气老化试验。
This series of products for electrical insulation materials, heat-resistance test, electronic parts, plastic products ventilation aging test.
该系列产品适用于电气绝缘材料的耐热性试验，电子零配件、塑化产品之换气老化试验。
This series of products for electrical insulation materials, heat-resistance test, electronic parts, plastic products ventilation aging test.
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