知识贝壳
知识贝壳
所属栏目：矿物学专业术语
Definition: An amorphous substance is something that has a random molecular formation inits natural form (when solidified). The opposite would be semi-cristaline which has randommolecular structure when heated but returns to an organised uniform state whe ......（本文共 500 字 ） [阅读本文] >>