常見例句With common forming processes, it is diffcult to form breakback contactor seat which is an important part with complicated shape for high voltage power transmission and disribution system. 介紹了采用沖壓旋壓復合工藝成形靜觸頭座的過程。其中包括:變薄旋壓成形薄壁筒體,擴口翻邊成形法蘭,普旋方式成形異形管口等。breakback contact 靜觸點breakback mechanism 碰返機構(gòu)breakback mechanisms 復位安全機構(gòu) 返回 breakback