- Start埋蔵まいぞうburying in the ground
- Start採掘さいくつmining, digging, working (a mine)
- Start鉱山こうざんmine (ore)
- Start保温ほおんretaining warmth, keeping heat in, heat insulation
- Start麻あさhemp (plant)
- Start拡散かくさんspreading, disseminating, scattering
- Start還元かんげんrestoration, return
- Start潜水せんすいdiving, submerging, going underwater
- Start排水はいすいdrainage, draining, pumping out (water)
- Start一括いっかつlumping together, summing up, bundle
- Start化繊かせんsynthetic fiber, synthetic fibre, chemical fiber
- Start飽和ほうわsaturation, satiation
- Start鉄鋼てっこうiron and steel
- Start鉛なまりlead (Pb)
- Start蒸溜じょうりゅうdistillation
- Start蛋白質たんぱくしつprotein