has dimension has unit 単位を持つ has value 値を持つ amount of substance stofhoeveelheid n Amount of substance is the number of elementary entities such as atoms, molecules, electrons, particles, etc. present in a phenomenon. It is a base quantity in the International System of Units. amount of substance unit quantity 量 amount of substance dimension stofhoeveelheiddimensie attomole attomol centimole centimol decamole decamol decimole decimol examole examol femtomole femtomol gigamole gigamol hectomole hectomol kilomole kilomol megamole megamol micromole micromol millimole millimol mole mol nanomole nanomol petamole petamol picomole picomol teramole teramol