一般用語集
ERA1［earned run average］ 一般用語集 E
| 項目 | ERA1［earned run average］ |
| 意味 | 野球で，投手の防御率。 |
一般用語集 五十音順
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用語集＞一般用語集＞E＞ERA1［earned run average］
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