volatile covering覆盖层: overburden; superstratum; ba ...挥发性覆盖层；造气的焊皮: volatile covering保护性覆盖层: protective coating覆盖层: overburden; superstratum; baring; muck; cover; tectum 脂肪覆盖层 fat covering软骨性覆盖物: cartilaginous covering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:挥发性覆盖层，即可在微信中查询翻译
