If he put his finger over the nozzle he could produce a forceful spray.
如果他把手指按在喷嘴上,就可以产生强力的喷射。
《柯林斯英汉双解大词典》
2
According to What Technology Wants, a book by Kevin Kelly, one of the founders of Wired magazine, America's flintknappers produceover a million new arrow and spear heads every year.
Prior to 1960, geologists Bowen and Hess disagreed over whether or not the very high temperatures needed to produce magmas rich in magnesium could have existed on Earth.