Article(id=1242128377570726002, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242128373254787169, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=-2209017600000, receivedDateStr=1900-01-01, revisedDate=-2209017600000, revisedDateStr=1900-01-01, acceptedDate=null, acceptedDateStr=null, onlineDate=1326816000000, onlineDateStr=2012-01-18, pubDate=1326816000000, pubDateStr=2012-01-18, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1326816000000, onlineIssueDateStr=2012-01-18, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774076082839, creator=sys-migrate, updateTime=1774076082839, updator=sys-migrate, issue=Issue{id=1242128373254787169, tenantId=1146029695717560320, journalId=1146031591421210625, year='2012', volume='30', issue='2', pageStart='3', pageEnd='96', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774076081811, creator=sys-migrate, updateTime=1774076081811, updator=sys-migrate, preIssue=null, nextIssue=null, ext=null, issueFiles=null}, startPage=8, endPage=8, ext={CN=ArticleExt(id=1242128378220843124, articleId=1242128377570726002, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=空间晶体生长研究进展, columnId=1242116810175222427, journalTitle=科技导报, columnName=封面图片说明, runingTitle=null, highlight=null, articleAbstract=地球上不同纬度和不同高度的重力加速度是有起伏的,其平均值是g₀=9.80m/s²。微重力环境的严格定义是g=10^-6g₀处的空间环境。获得微重力环境的实验装置和航天器：落管、落塔、气球、抛物线飞机和探空火箭等,可得到数秒到数十分量级的微重力环境;使用人造卫星、飞船和特殊的太空飞行器,可获得数天到数十天的微重力环境;使用空间站可实现数年到十几年的微重力环境。2011年9月29日,中国成功发射“天宫一号”实验平台,它是一座试验性空间站。2011年11月3日,成功实现了“天宫一号”与“神舟八号”飞船的对接,这表明中国已具备实现微重力环境的所有手段。本期封面图片上部为“天宫一号”与“神舟八号”飞船的对接过程模拟图。, 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