词汇	extractor core
释义	extractor core 岩心抽取器
随便看	Colleges and unlversities colleges and unversities colleges and vocational colleges colleges anti universities colleges at the departmental level college-savings Colleges battle red ink with tuition fee hikes colleges campus culture college scholarship service college school college-school cooperative venture college school library college school newspaper college science college science park college science researchers and technicians college scientific effort college self-established intangible assets college senior college seniors college senior students college service department colleges expansion colleges expansion policy college sexual education