Sentence:  I'll recommend a good way to calculate <WSD>backhoe</WSD> production rates. Then we'll look at the two <WSD>backhoes</WSD> you'll be using, the wheeled <WSD>backhoe</WSD> and the tracked <WSD>backhoe</WSD>. 
Meaning of the word marked with <WSD> tags:  A multi-purpose tractor with a front-mounted loading bucket and a rear-mounted digging bucket.