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1. The machine has a stepped diameter thatmakes it easy to adjust the size ofthe holes.
这台机器有一个阶梯直径，使得调整孔的大小变得容易。
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2. Thenew design uses a stepped diameter to reduceweight and increase efficiency.
新设计使用阶梯直径来减轻重量并提高效率。
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3. The constructioncompany used a stepped diameter to make theproject more cost-effective.
建筑公司使用阶梯直径使项目更具成本效益。