这台自动挤奶机每天可以给上百头奶牛挤奶。

This automatic ___milker can milk hundreds of cows every day.

他们农场里大多数是奶牛，但只有少数几头泌乳牛产奶量特别高。

Most of their farm is cows, but only a few ___milkers produce exceptionally high amounts of milk.