所述导引件可为具有适当的形状和尺寸的螺旋形或板形件。

The described guide piece can be made into a spiral piece or plate piece with appropriate shape and size.

youdao

所述导引件可为具有适当的形状和尺寸的螺旋形或板形件。

The described guide piece can be made into a spiral piece or plate piece with appropriate shape and size.

youdao