the crucible refractory xl901 of the mains frequency coreless furnace for melting copper including its main properties and the choice ofadditives, agglutinants etc. is introduced.
介绍工频无心熔铜炉炉村耐火材料xl901的烧结剂和外加剂的选择,xl901的主要性能指标等。
therefore it can be seen that it will 「smooth」 the 「twice mains frequency dc」 into a near constant dc voltage.
因此它可以把「两倍于电源频率的直流电」进行「平滑化处理」,成为一个接近恒定的直流电。
melting characteristics of mf induction furnace have been expounded with comparison with that of mains frequency induction furnace as well as concerns in operation.
论述了中频感应电炉的特点,与工频感应电炉熔炼特性的比较及其操作注意事项。
the article introduces the composition lining of the mains frequency coreless induction furnace with short coils.
本文介绍短线圈工频无心感应保温炉采用的复合炉衬。
on customers request these vibrators can be coordinated in pairs to run absolutely synchronous in mains frequency range from 20 hz up to 60 hz in both directions.
对客户要求这些振动器可协调,对运行在电源频率范围从20赫兹到60赫兹的频率在两个方向完全同步。