All major groups of vertebrates have rods in the retina as well as cones.

所有主要脊椎动物类群的视网膜中，都同时含有杆细胞与锥细胞。

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Japanese workers are scrambling to control a nuclear plant after a fire that may have burned several fuel rods.

日本的一个核电站发生火灾后，可能已经烧掉几个核燃料棒，日本工人们正艰难地掌控着它。

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The latest threat at the plant was the fuel-rod pools, which contain used fuel rods that have been withdrawn from reactors yet remain highly radioactive.

核电站最新的威胁来自燃料棒池，其内是从反应堆中抽离的使用过的燃料棒，但仍然具有高放射性。

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They did not have rods.

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Families and sporting companies have sent rods and golf clubs, which are passed down from one unit to the next.

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American pacemaker suppliers have become lightning rods for criticism in Japan for charging prices roughly double those back home.

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