trapdoor
n. (舞台的)地板门,活板门,活盖
A trapdoor is a small horizontal door in a floor, a ceiling, or on a stage.
This program is used to compute the trapdoor channel capacity.
这个程序是用于计算陷渠道能力.
She uncovers a sand covered wooden trapdoor with a rope.
他打开了一个有着一条绳子的被沙子埋在下面的地板门.
Cryptographic attack based on trapdoor is presented, examples are given.
提出了一种基于陷门的密码攻击方法, 并给出了几个例子.
The woman shut the trapdoor with a slam.
这位女主妇砰的一声关上活板门.
She raised the trapdoor and pointed to a flight of steps.
她打开了房门,用手指着书架.