每个打孔针组都含有多枚打孔针，这些打孔针围绕驱动轴以辐射形状排列充分地展开，可以为被打上孔的根系通气。

Each tine assembly has a plurality of tines for aeration extending in a substantially radial pattern about the driven shaft.

youdao

每个打孔针组都含有多枚打孔针，这些打孔针围绕驱动轴以辐射形状排列充分地展开，可以为被打上孔的根系通气。

Each tine assembly has a plurality of tines for aeration extending in a substantially radial pattern about the driven shaft.

youdao