floating tube barrel单: singular number fate; destin ...动: harness cause disorder stir ...双层: double-deck; having two laye ...岩芯: core snake's tongue管: pipe; tube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:单动双层岩芯管，即可在微信中查询翻译
