Dead weight loading simulating that of the bolts was applied at the bolt holes through the agency of steel balls and buttons.

螺栓荷载是用死荷重来模拟的，以钢球和压钮作为代用件，通过它们将此荷载施加于螺栓孔。

youdao

Open in Emergency: Under no control. The door can be opened even if the dead bolt is locked.

应急开启：不受任何控制，即使方舌反锁，也能开门。

youdao

Plastic dead bolt lock. RH and LH application.

塑料固定式插销锁，左右门均适用。

youdao

Corbett said it may be difficult to get out a dead-bolt door, or some doors might be blocked by equipment or boxes.

CNN: Be ready for emergency at a crowded public gathering

Apart from its merits as a hops-delivery system, it sports the Dead's lightning-bolt skull logo, which can't help but encourage responsible debauchery, as well as occasional flashbacks.

WSJ: An Enduring Tradition