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In order to remember Zu, some mathematicians suggest calling pi "Zu Lv".
Khan led his army to cross exposure and raft through the Jinsha River, unified Yunnan.

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Open the tool →祖率 (zǔ lǜ) means “Zu's ratio”.
祖率 is pronounced zǔ lǜ in Mandarin Chinese.
“Zu's ratio” is 祖率 (zǔ lǜ) in Chinese.
This page has 2 example sentences using 祖率, each with pinyin and an English translation.