opaque medium不: a block of wood透射: penetrance; transmission; ho ...线: thread; string; wire媒质: medium; media不透射线的: adiactinic; nonradiable; radioopaque; radiopaque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:不透射线媒质，即可在微信中查询翻译
