“刺孔”造句

他示范如何修补车胎刺孔.
He demonstrated how to mend a puncture.

设计了一种金属孔板波纹填料用刺孔机,包括上、下辊轮, 刺辊, 槽辊, 减速系统.
It includes the up and down rolling wheel , thorny roller, groovy roller, reducing gears.

• #刺孔