Here is a paragraph from a book: 1) confirm by document inspection and observation that the compensation setting for each sensor is retained in a non-volatile memory and that it is automatically applied when each sensor is selected. What does the part in boldtype mean? Is it mean we should confirm by document inspection and ovservation or we have onfimed by document inspection and observation or what?
The sentence is badly phrased. It implies that the document has sensors, which is silly. I would guess that the author wants the reader to set the sensor settings of a device (or compare them) to the recommended settings in a users manual or educational text.