sand model砂: sand; grit模型: model; pattern填砂模型: sand pack; sand-packed model硬砂模型板: hard sand match不均匀填砂模型: heterogeneous pack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:砂模型,即可在微信中查询翻译