The utility model discloses a burner used for quenching in hole, in particular suitable for quenching the partial surface flame in pin hole at hook tail of hook of the train.
本实用新型公开了一种用于孔内淬火的燃烧器，特别适用于列车车钩钩尾销孔局部表面 火焰淬火。
While both competitors are tailless flying wings powered by single turbofans, the X-47B was designed for carrier operations and features folding wings and a tail hook.
参与竞争的两种无人机均为单一扇涡轮驱动的无尾翼飞行飞机，除此以外，X - 47 B被设计用于航母作战，具有可折叠机翼，并装备有尾部吊钩。
Hook the small prawn from tail to head for fishing prawns and small fish.
钓虾或钓小鱼时把小虾从尾部钩到头部。
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