shell; lamellae◇壳层结构 shell structure壳: shell; hard surface层: I storey; tier; stratumk壳层: shell km壳层: m shell; m-shellq壳层: q shell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:壳层,即可在微信中查询翻译