noun 下载 🔗分享 千克，公斤 In the International System of Units, the base unit of mass; conceived of as the mass of one litre of water, but now defined by taking the fixed numerical value of the Planck constant h to be 6.626 070 15 × 10-34 when expressed in units of kg⋅m2⋅s−1. Symbol: kg Examples : "The apple weighed one kilogram. " 这个苹果重一公斤。 mass unit physics science amount 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 千克，公斤 The unit of weight such that a one-kilogram mass is also a one-kilogram weight. Examples : "The recipe calls for one kilogram of flour. " 这个食谱需要一公斤面粉。 mass unit physics 与AI对话词汇游戏阅读练习
