用“cotton gin”造句大全，cotton gin造句
Eli Whitney receives a patent for his cotton gin, an invention that revolutionizes America's cotton industry.
Within his lifetime, Malthus was able to witness incredible surges in mankind's agricultural productivity, thanks to inventions like the steam engine and the cotton gin.
Was it how you invented the cotton gin?
Dell first builds a mold, then fills it with cotton husks, a waste product left over from cotton gins.
The refined roller-type cotton gin is much more convenient to use.
We had to convince gins to clean their cotton gins and then process our stuff.
Cotton demand soared, but the cotton gin also multiplied the demand for slave labor.
