Ejecting device for knife bar.

垫刀条顶出装置。

youdao

Finally seen close up in season 4, the knife resembles an antler handled K-Bar with runes etched into the blade.

这把刀最后一次出现是在第4季中的一个特写镜头：刀看起来像是用k - Bar牌子的刀，以鹿角作刀柄，刀身上刻有古代北欧文字。

youdao

It joined other essentials in my field pouch like extra camera batteries, flash CARDS, Swiss Army knife, toilet paper, notebook, granola bar, bottled water and luck.

我把它和其他必备品一起放进装备袋，如备用相机电池、闪存卡、瑞士军刀、卫生纸、笔记本、格兰·诺拉麦片条、瓶装水，还有好运！

youdao

With regards to knife crime, Michael Turner QC, chairman of the criminal bar association, said "a very blunt instrument" was being used in the form of deterrent sentences which, he said, "research shows doesn't work".

BBC: Tougher prison sentences for violent crime in force