Of course, objectivity is an ideal that scientists, engineers or technologists aim at but never achieve fully. Anyhow, they have to select desirable details and eliminate others, though they can hardly be completely objective.
In the following passage, N. M. Pearsall et al. have given an objective description of UK and US city centers in terms of the factors of most influence on the potential generation of electricity by photo voltaic modules installed on building roofs or walls. The passage reads (Page 76)
From the above excerpt, it can be seen that the authors describe the two sites objectively by comparing them from their general climatic, geographical, and locational features to the height of buildings and their wall and roof styles and the sun's directions at any given time. The authors also give an analysis of the influence of climate, latitude, road layout and the building types on the total solar input and on the optimum surface orientation. Such a kind of objective description is typical for professional research papers.