原器 | [げんき, genki] (n) standard (for weights and measures) [Add to Longdo] |
キログラム原器 | [キログラムげんき, kiroguramu genki] (n) prototype kilogram [Add to Longdo] |
原器 | [げんき, genki] (n) standard (for weights and measures) [Add to Longdo] |
キログラム原器 | [キログラムげんき, kiroguramu genki] (n) prototype kilogram [Add to Longdo] |