點(diǎn)集系 linear system of point groups: 線性點(diǎn)集系point groups: 點(diǎn)群組crystallographic point groups: 晶體學(xué)點(diǎn)群point symmetry groups: 點(diǎn)對(duì)群the 32 crystallographic point groups: 32種晶體學(xué)點(diǎn)群下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯