spear pointer

• 矛形指针,箭头指针

spear pointer的用法和样例：

例句

1. The pressure pro-portional elastic deformation of this bourdon tube is transmitted through a low friction movement to the knife edge pointer.
   波登管的压力比例塑性变形通过摩擦力很小的机械装置传递给刃形指针。