English to French Tech/Engineering Biology (-tech,-chem,micro-) coordinate system

Video transects were to be taken prior to environmental sampling at the client predefined locations where biological structures may be present.

If biological structures were present, no environmental sampling was to take place.
If a sampling location did not have a designated transect then a camera drop-down was to be carried out to verify that the ground was clear for box coring.

The length and location of video transects was predefined by the client.