The results show that: in existing technical and economic indicator situation, the age at economic maturity of Chinese fir plantations is 17 years when the interest rate is 5%.
结果表明：在现有技术经济指标的情况下，利率为5%时杉木人工林经济成熟龄为17年。
The results suggested that the chromaticity of tinto was mainly dependant on grape maturity degree, grape age, grape producing area, and late-stage technical management.
结果表明，葡萄的成熟度、年份、产地及后期的工艺管理是影响葡萄色度的重要因素。
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