1·Seat ring and retainer are available in full and restricted port constructions, and can easily be changed if capacity requirements change.
座圈和保持架可在充分和限制的港口建设，而且很容易改变，如果需求变化的能力。
2·Thrust ball bearings consist of ball, retainer and both shaft and housing washers which contain grooves for the ball.
推力球轴承包括球，保持架和两轴和轴承座垫圈其中所包含的球槽。
1·I do not have dentures, but I have a clear retainer.
我不戴假牙，但我有一个清晰的家臣。
1·A safety clip or retainer must be installed to prevent attachments, such as chisels on a chipping hammer, from being unintentionally shot from the barrel.
必须安装保险夹或护圈，以防止配件(如气錾的凿刀)从凿筒中意外飞出。
1·Structure and features of linear bearing is a shell, special ball, retainer ring or a ring with both ends of the card formed.
构造与特点直线轴承是由壳体、专用钢球、保持器与两端卡环或密封圈所组成。
1·A screwdriver is used to remove the spiral seat retainer ring from its groove.
采用一把螺丝刀从凹槽中拆卸螺旋阀座定位器环。