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浏览/检索结果: 共4条，第1-4条 帮助 限定条件 内容类型：专利     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Reducing biuret content in industrial urea involves adding industrial urea as raw material and anhydrous methanol or ethanol as extracting agent and then extracting obtained material. 专利 申请日期: 2016-01-01, 公开日期: 2016-01-13 作者:  HE G ZHANG X CUI Y LI Z 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/09 Point inspection data format and interaction method of point inspection data 专利 申请日期: 2015-01-01, 作者:  TANG SHU;  XU YAOHUA;  HU YANJUN;  LI MIN;  YANG LIQUN 收藏  |  浏览/下载：4/0  |  提交时间：2019/04/19 Multi-functional vehicle four-internal combustion engine jar intensive full-variable valve actuation system, has circulating selector whose brake opening is connected with brake oil port of mode converter. 专利 申请日期: 2014-01-01, 公开日期: 2014-02-26 作者:  CUI J FENG L HE S LONG W TIAN J ZHA 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/11 Hydrogen gas recovering method, involves returning hydrogen to synthetic compressor from permeate side of hydrogen membrane separator using high pressure, and sending mixed storage tank gas into refrigerator system to provide hydrogen gas. 专利 申请日期: 2009-01-01, 公开日期: 2009-12-02 作者:  CUI X GUO D HE G HE Q HE Z WANG M 收藏  |  浏览/下载：1/0  |  提交时间：2019/12/24