active和inactive？ 我不太懂这方面，下面是搜索的一段话，不知道能不能帮上忙 rotating shaft machines such as turbines include stationary thrust bearings for preventing excess axial movement of the rotating shaft. the rotating shaft has a thrust collar which is rotatable with the shaft and which is positioned axially between an "active" and an "inactive" thrust bearing. lubricating fluid is sent to both bearings to provide a lubrication film on the face of each thrust bearing which then supports the thrust collar as the shaft moves in either axial direction. the "active" thrust bearing is the bearing expected to ordinarily carry the higher loads most of the time whereas the "inactive" bearing would carry loads part of the time. active表示现在使用，inactive表示备用/待用。 ref : http://www.patentstorm.us/patents/5042616/description.html 查看更多
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