Why do you have two cell phones?
There are two pianos at Koichi's mom's house.
There are only two televisions in our bathroom.
When you combine these two kanji, you should be able to see how it forms the word two machines.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.