Gapping machines是什么意思

用法例句

The authors created and designed the reciprocating sowing machines in order to take place of the thinning out seedlings work-the traditional agricultural method of grain production.

为了取代谷子生产传统耕作方法中的间苗劳动,作者创新设计了往复式排种器应用在谷子精密播种机上。