The glass fiber can change the mechanical properties of the material .

可改变材料机械性能。

The glass fibers tend to orient in the flow direction

倾向于在流动方向上取向。

Now imagine doing that millions of times faster down a tiny glass fiber, across  an entire ocean and you've got the right idea.

现在想象一下， 沿着一根微， 数百万倍速度穿过整个海洋，你就得到了正确想法。

The team have worked out how to minimize cost by using carbon fiber rebars only where strictly necessary In other places they use glass fiber which is cheaper.

团队已经研究出如何通过仅在严格必要情况下使用碳钢筋来降低成本，在其他地方他们使用更便宜。