FR20S-1P日本NOHKEN日本能研连杆液位开关FR20S-2P FR20S-1PFR20S-2PFR20S-3PFR20S-4PFR20S-5PFR20S-6P FR20VS的型号有;材质为PVC FR20VS-1PFR20VS-2PFR20VS-3PFR20VS-4PFR20VS-5PFR20VS-6P FR20PS的型号有:材质为:PP FR20PS-1PFR20PS-2PFR20PS-3PFR20PS-4PFR20PS-5P FR30HVS的型号有...
已知晶胞的组成就可推知晶体的组成 **答案**:答案: B **分析**:解析: 由晶胞的定义可知A选项正确;相同晶体中晶胞的大小和形状完全相同,不同晶体中的晶胞大小和形状不一定相同,B选项错误;晶体中有的粒子被若干个晶胞所共有而不专属于某...