bolt down

基本解釋

If find the fire door handle, door locks, bolt (including bolt down), a closed-door, and hinge, the door are in question;
發(fā)現(xiàn)防火門(mén)拉手、門(mén)鎖、門(mén)栓（包括倒栓）、閉門(mén)器、郃頁(yè)、門(mén)邊有問(wèn)題；
blog.china.alibaba.com
When the rubber is injected into the mold, the pressure keeps the bolt down and the rubber molds around the "X" head, completely encapsulating it.
橡膠注塑到模具中時(shí)，壓力使螺栓下降，橡膠就會(huì)完全填滿(mǎn)X頭。
www.e-gtm.com.cn
You'll suffer from indigestion if you bolt down your food like that.
你那狼吞虎咽地喫東西，會(huì)得消化不良癥的。

Mr Romney could turn out to be plausible on this criterion: he should tack to the centre in 2012 if he can bolt the nomination down.
ECONOMIST: Christopher Lockwood bemoans reality