Accordingtousage the top of flange surface minor faults proceed experiment and study, thought it do not affect HR H-beam.
通过对热轧H型钢翼缘端部表面瑕疵进行试验、研究，认为翼缘端部表面瑕疵不影响热轧h型钢的使用。
2
Accordingtousage environment, temperature measurement error of automatic thermograph was studied in different environment temperatures.
根据温度自记仪的使用环境，研究在不同环境温度下温度自记仪的测温误差。
3
Accordingtousage request of controlled objects in high frequency box, adopt AT89C52 for the core electric circuit, designed multiplex voltage output controller.