Product structure: The product consists of protective cover, needle tube, needle seat and syringe.
本产品由保护套、针管、针座、和注射器组成。
Observe the orientation of the wheel and the seat tube; they should both be parallel.
观察方向的车轮和座位，他们都应该是平行的。
Product structure: The product consists of protective cover, needle tube, needle seat and...
产品结构：本产品由保护套、针管、针座、和注射器组成。
Take the Seat, Main, and Forward Tube assemblies and situate them as shown below.
以座位，主，和前进管组件和它们位于如下所示。
Take the Seat, Main, and Forward Tube assemblies and situate them as shown below.
以座位，主，和前进管组件和它们位于如下所示。
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