知識貝殼
知識貝殼
所屬欄目：礦物學專業(yè)術語
Definition: The couple of reflections h, k, l and ,, is called a Friedel pair, or Bijvoetpair. Their intensities are equal if there is no absorption,but differ otherwise. Friedel’s law thendoes not hold. Generally speaking,when absorption is prese ......（本文共 781 字 ） [閱讀本文] >>