spade bit（铲形钻头）是什么意思？音标发音+图解场景

铲形钻头 /ˈspeɪssuːt/ n

English: spade bit · 铲形钻头

释义：Bit designed for shallow holes of wide diameter; it has a long lead screw for positioning on the center of the hole.

这个词出现在以下图解场景（1）