名词
中文翻译：滚动体长度
同义词：
['roll length', 'rolling length']
例句：
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1.The new car has a roll body length of 4.5 meters.
这款新车的滚动体长度为4.5米。
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2.The engineer measured the roll body length carefully before starting the machine.
工程师在启动机器前仔细测量了滚动体长度。
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3. The manufacturer claims that the roll body length is longer than its competitors.
制造商声称，其产品的滚动体长度比竞争对手的长。