The invention relates to a plastic shell-type breaker magnetic test contactprotection appliance and a using method thereof.
本发明涉及一种塑壳式断路器磁试验触头保护用具及使用方法。
2
The invention relates to an electric switch contactprotection scheme which belongs to the technical field of electric switch manufacture.
本发明所述的一种电器开关触点保护方案，属于电器开关制作技术领域。
3
One suggests that a royal protection officer was paid by the paper to supply high-level royal contact numbers in what may have been a major breach of palace security.