As a non-English native speaker, I don't know what is the difference between these following expressions and whether or not the first expression is correct?
The first expression:
Then you sometimes check the depth of the trench when you are pulverizing, dragging soil up, and then recreate your digging process.
The second expression:
Then you sometimes check the trench depth when you pulverize and drag the soil up, and then recreate your digging process.
Are the depth of the trench and the trench depth exactly the same? if they are different, then what is the difference here?