“孔屑”造句

这些孔屑包括石头碎片 、 灰尘、煤渣和其他东西.
These borings consist of rock fragments, ash coal and other materials.

不像那些打孔机和打出来的孔屑, 垂悬, 旋转和起波纹.
Not the ones with hole - punches and their chads, hanging, swinging and dimpled.

• #孔屑