negative birefringence负: burden; load双折射: double refraction; birefring ...率: rate; ratio; proportion负双折射: negative birefringence; negative catalyst视双折射率: apparent birefringence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:负双折射率,即可在微信中查询翻译