一般用語集
ppt［parts per trillion］ 一般用語集 P
| 項目 | ppt［parts per trillion］ |
| 意味 | 一兆分率。極めて低い濃度などを表す単位。 |
一般用語集 五十音順
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It opens up the feelings of our predecessors in the advanced technology
用語集＞一般用語集＞P＞ppt［parts per trillion］
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