In order to enhance the service hfe of hollow steel for rock drill stem, the odd number side section shape hollow steel has been designed.
为了提高凿岩钎杆用中空钢的使用寿命，设计了奇数边截面形状的中空钢。
Features: High DC current gain, excellent hFE linearity, low saturation voltage.
特点：直流电流增益高，放大线性好，饱和压降低。
Features: High DC current gain and excellent hFE linearity, low saturation voltage.
特点：直流电流增益高，放大线性好，饱和压降低。
Features: Low saturation voltage, excellent dependence of hFE on current, fast switching time.
特点：低饱和压降，电流放大线性好，开关速度快。
HHC results from a mutation involving the hemochromatosis gene (HFE) that leads to increased iron absorption from the gut.
该病是由于血色素沉着症基因(HFE)突变使得肠吸收铁增加所致。
To investigate further, the researchers studied 1051 HCV patients and found that 35% carried at least one HFE gene mutation.
更进一步，研究者研究了1051名HCV病人并发现35%携带有至少一种HFE基因突变。
The main features, technical parameters, main structure and testing of the HFE type meter-gauge grain hopper cars are described.
介绍了H FE型米轨粮食漏斗车的主要特点、技术参数、主要结构及试验情况。
Abstract: human factors engineering (HFE) is the system engineering of human system interfaces (HSI) which are concentrated in the main control room of the nuclear power plant.
摘要：人因工程是人机接口的系统工程，主控室是核电站中人机接口最集中的地方。
Abstract: human factors engineering (HFE) is the system engineering of human system interfaces (HSI) which are concentrated in the main control room of the nuclear power plant.
摘要：人因工程是人机接口的系统工程，主控室是核电站中人机接口最集中的地方。
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