Noun
にだい
どうしてけいたいを二台もっているんですか。
Why do you have two cell phones?
コウイチの母のいえには、ピアノが二台ある。
There are two pianos at Koichi's mom's house.
うちのトイレにはテレビが二台しかない。
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.