Related by context. Frequent words. (Click for all words.) 60 insulating layer 57 impermeable 57 oxide layer 57 nonporous 56 agglomerates 55 chlorides 55 geotextile 55 oxidising 55 impermeable barrier 55 erosional 55 permeable 54 membrane 54 gate electrode 54 combustion gases 54 friable 54 inversion layer 54 liquid electrolyte 54 glacial till 54 waxy substance 53 granulate 53 metastable 53 andesitic 53 sulfide minerals 53 oxidization 53 waterproof membrane 53 hydrothermal fluids 53 heap leach pads 53 cementation 53 oxidise 53 tiny pores 53 nanoporous 53 manganese oxide 53 polymer matrix 53 aqueous solution 53 adsorbent 52 sediment 52 pyritic 52 hygroscopic 52 watertight seal 52 polymerized 52 siltstones 52 electrochemically 52 semisolid 52 hydroxide 52 kerogen 52 naturally occurring mineral 52 microchannels 52 overpressure 52 silts 52 shallow aquifer 52 intermittent streams 52 swarf 52 gate dielectric 51 adiabatic 51 electrically conducting 51 absorbs moisture 51 oxidizing 51 slurries 51 anode 51 adsorb 51 superheated steam 51 fracturing fluids 51 alluvium 51 sludges 51 Sulfur dioxide 51 argon gas 51 kaolinite 51 feedwater 51 electrochemical reaction 51 aerates 51 carbonic acid 51 hydrostatic pressure 51 Reverse osmosis 51 hydroxyl radicals 51 sump 50 goethite 50 sedimentary rock 50 conductive polymer 50 underfill 50 calcium sulfate 50 oxidised 50 airtight seal 50 biofouling 50 calcite 50 collagen fibers 50 electro static 50 antimicrobial coating 50 epoxy coating 50 bilayer 50 silicon substrate 50 igneous rock 50 paramagnetic 50 deplete oxygen 50 exothermic 50 membranes 50 graphitic 50 mycelium 50 temperature gradient 49 clarifiers 49 flammable vapors 49 shotcrete