The technological property of the chain wheel of the torsion-limiting device is analyzed.
本文分析了链轮加工的常用方法 ,设计了专用链轮铣削刀具。
It is very important for the operating of district heating systems to use the pressure limiting device.
区域供热系统中的稳压(或定压)系统,是保证供热网合理运行的重要手段。
The invention relates to an electrical current limiting device having a superconductive switching element.
本发明涉及一种具有超导开关元件的电流限流装置。
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