interlock needle track 双罗纹针道
Needle roller bearing track rollers 滚轮滚针轴承 ; 滚针轴承滚道滚针
Needle roller bearings-Track rollers 滚轮滚针轴承
Track roller needle roller bearings 滚轮滚针轴承
Needle roller track 滚针滚动导板
No severe complications such as infection, excessive bleeding, hemothorax, aeroembolism, needle track implantation metastasis occurred.
无感染、大量出血或血胸、空气栓塞、针道种植等严重并发症发生。
If you are in the middle of a project, there are two ways you can keep track of your needle, especially when you will soon be starting a new co lour.
如果你在项目中间，有两种方法可以让你的针跟踪，尤其是当你将很快开始新的颜色。
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