draw-out relay的用法和樣例：
例句
- A contactor is a special type of electromechanical relay, where the contacts are attached to the armature.
接觸器是一種特殊類(lèi)型的機電式繼電器，其觸點(diǎn)被安裝在樞軸機構上。 - The high permeability of the ferromagnetic reeds in a reed relay causes a pronounced skin effect with increasing signal frequency.
干簧式繼電器中鐵磁簧片的高磁導率會(huì )隨信號頻率的增加而產(chǎn)生很強的趨膚效應。
