形容词
中文翻译：Unknown
同义词：
['pipe-shaped', 'tubular', 'cylindrical', 'pipe-like']
例句：
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1. The tube was made of metal and had a diameter of 10 cm.
这个管子是用金属制成的，直径为10厘米。
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2. The machine has a tubular design that allows it to fit easily into tight spaces.
这种机器有一个管状设计，可以轻松地放入狭小的空间。
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3. The water flowed through the tubular valve in a steady stream.
水流通过管状阀门，平稳地流淌。