单词：provenances
n where something originated or was nurtured in its early existence
provenances的用法和样例：
例句
- Provenances selection and afforestation technique of Fraxinus mandshurica Rupr.水曲柳优良种源选择及造林技术。
- An approach to seedling growth rhythm from different provenances of Pterocarya stenoptera C.DC.枫杨种源苗期生长节律的初步研究。
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