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草坪绿期
释义
草坪绿期
Encyclopedia
农学
草坪质量
释
green period
草坪绿期
草坪草生长旺盛,草坪全年保持绿色外观的时期。一般指草坪中草坪草群落的50%返青之日到草坪草群落的50%呈现枯黄之日期间持续天数。也有中国学者认为草坪绿期是指草坪群落中80%的植物返青之日到80%的植物呈现枯黄之日的持续天数。
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cut-off error
cut off filter
cut-off filter
cutoff filter
cut off frequency
cut-off frequency
cutoff frequency
cut-off grade
cut-off grade of ore drawing
cutoff impulse
cut-off low
cutoff low pressure systems
cutoff of waves
cut off one's head and hang it up as a warning to all
cutoff rate
cut-off rigidity
cut-offscore
cut-off storage
cutoff wall
cut-off wavelength
cutoff wavelength
cut-off wavelength shift single mode fiber
cut of the rational numbers
cut of the real numbers
cut operation
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