ratio of erosion thickness and stratigraphic thickness

thickness difference to average thickness

Thickness-control with thickness gauge

tube thickness (=tube-wall thickness)

24 h thickness swelling rate

6 dB sound beam full wall thickness overlap area

ABL thickness

ablated thickness

ablative thickness transducer

abnormal coal seam thickness

Abrasion in thickness

Absorber effective thickness

absorbing layer thickness

Absorption layer thickness

absorption thickness

AC type iron sheet thickness gauge

accumulated total coal seam thickness

accumulation thickness of attributes

accuracy of traverse thickness