The iron rod supports the valance is bent in an arc.

挂窗帘上部短幔的铁棍弯成了个弓形。

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He heated the iron rod and bent it into a right Angle.

他将铁杆烧热，然后将之弯成直角。

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The iron rod supporting the valances was bent in an arc.

挂窗帘上部短幔的铁棍弯成了个弓形。

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He was in the circus going around the country with his big iron rod telling everybody the story as they surrounded him and clapped.

他跟着马戏团全国巡演,带着他的大铁棒，告诉大家这个故事,观众们围着他并鼓掌。

耶鲁公开课 - 心理学导论课程节选

So successful was the bank that under Cosimo de' Medici, who ruled it with an iron rod, the Medici were for a long while put in charge of papal finances.

ECONOMIST: Millennium issue: Banking

So if your patented device uses an iron rod and a competitor develops the same device with a steel rod, you may not be protected under the ruling.

FORBES: Me-too patents