crystallographic plane groups

例句：

1. 1.The crystallographic plane groups are crucial for understanding the structure of crystals.
   晶体学平面群组对于理解晶体结构至关重要。
2. 2.The research group focused on studying the crystallographic plane groups of minerals.
   研究小组专注于研究矿物的晶体学平面群组。
3. 3.The discovery of new crystallographic plane groups has opened up new possibilities in materials science.
   新发现的晶体学平面群组在材料科学领域开辟了新的可能性。