has dimension has unit 単位を持つ has value 値を持つ mass massa 质量 m weight Mass is the amount of matter of a phenomenon. It is a base quantity in the International System of Units. Mass is force divided by acceleration. mass unit quantity 量 International Unit 国际单位 attogram attogram carat (mass) karaat (massa) centigram centigram 百分之一克 decagram decagram decigram decigram 十分之一克 exagram exagram 千兆兆克 femtogram femtogram gigagram gigagram grain gram gram 克 hectogram hectogram hundredweight (British) hundredweight (US) kilogram kilogram 公斤 kilotonne kiloton mass dimension massadimensie megagram megagram megatonne megaton microgram microgram 微克 milligram milligram 毫克 milligram RAE nanogram nanogram 纳克 nanounified atomic mass unit ounce (apothecaries') ounce (avoirdupois) pennyweight (Troy) petagram petagram 10^15克 picogram picogram pound (apthecaries') pound (avoirdupois) slug 金属块 solar mass zonsmassa teragram teragram 10^12克 ton (long) ton (short) ton (short assay) tonne ton 公吨 unified atomic mass unit