有头螺钉

如果故障是发生在电路板上的话，只要拧松四个小帽螺钉，用一根电线把线路板和散热器作简单的交换就可以了?

Cap

cap supports preventing the foot cap support of shoes

hexagonal socket head cap screw

martagon; Turk's cap lily; Lilium martagon L.

cradle cap【儿科】 皮肤

crown cap【包装】

bubble-cap tower

cap