trigonal dipyramidal class三方: trilateral; three sides; tri ...复方: medicine made of two or more ...晶体: crystal; vitrella; crystal b ...三: three方: square下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:三方复方晶体；三方双晶体类，即可在微信中查询翻译
