After comparing the ways of making POF couplers, we decide to research and develop tapered mixing-rod couplers for polymer optical fibers.

通过研究比较，结合实验室的条件，确定了锥形混合棒塑料光纤耦合器作为研究方向。

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IMPAC is complicatedly structured like a network being composed of ribbed silk, rod body and tapered parts.

它是由肋形丝，棒体、条体和尖形物组成错综复杂的网状结构。

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There are a few changes to last year's car with Ferrari retaining the front and rear pull-rod suspension, while the rear of this year's model is narrower and more tapered.

CNN: Ferrari ready for Red Bull fight