English to French Tech/Engineering Automotive / Cars & Trucks

"Eliminating time saving components does not have a linear relationship with truck reductions/additions. Removing the auto-samplers and meters would eliminate 42 percent of the labour savings but could eliminate 60 or 70 percent of the theoretical truck savings. Model does not wholly account for bigger trailers and double tripping units."

Seems to be some kind of trucks.

Thanks for the help!