angstrom unit is used to measure the distance between two points
actinometer is measuring_instrument. angstrom is metric_linear_unit. time_unit is measure. unit_of_distance is unit_of_measure. volume is measure_of_space. measurement_of_distance is measuring_event. distance_measuring_device is measuring_device. angstrom is not metric_linear_unit. torque_wrench is measuring_device. unit_of_angular_distance is unit_of_measure.