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Automotive grandee vitesse small vehicle space positioning navigation system, has micro-processor module collecting reflected sound wave of vehicle and calculating time difference of transmitting and receiving waves to and from vehicle. 专利
申请日期: 2013-01-01, 公开日期: 2013-04-03
作者:  GUO L LI L ZHAO Y SUN S LI B
收藏  |  浏览/下载:3/0  |  提交时间:2019/12/13
Radiating gas-wave refrigerating machine for use during low-temperature dehydration in natural gas, has common cavity installed with heat exchange unit for absorbing energy of compressed waves or impact waves transmitted into cavity. 专利
申请日期: 2010-01-01, 公开日期: 2010-06-30
作者:  DAI Y HU D LIU F LIU P ZHAO J ZHU C
收藏  |  浏览/下载:6/0  |  提交时间:2019/12/24


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