After you take your braces off, you'll need to wear retainers for the rest of your life.

牙套摘掉之后，你之后一直都要带保持器。

Install the serrated retainers at the ends of the cover.

在盖的末端安装蛇型固定装置。

Install the serrated retainers at the ends of the cover.

安装连接末端端盖到前挡泥板的螺栓。

There are 23 units, including 8 pontics and 15 retainers.

共计23单位，其中桥体8单位，固位体15单位。

Ball lock retainers are completely processed by CNC machining.

我们的球锁固定板完全采用数控机床加工。

Photo 2 shows the valves with the valve spring retainers ready to go.

图片2显示阀与气门弹簧家臣准备。