名词
中文翻译：球形石墨铁环
同义词：
['球状石墨铁环，球形石墨铁圈，球形石墨铁珠例句：1. The spheroidal graphite iron ring was used as a key in the lock.（球形石墨铁环被用作锁的钥匙。）']
例句：
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1. The spheroidal graphite iron ring was used as a key in the lock.
球形石墨铁环被用作锁的钥匙。
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2.The spheroidal graphite iron ring was used to make the gears turn smoothly.
球形石墨铁环被用来使齿轮转动顺畅。
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3.The spheroidal graphite iron ring was used to protect the delicate parts of the machine.
球形石墨铁环被用来保护机器的敏感部分。