葡萄生长期对降水量、日照时数需求存在临界值。
The grape's demand for rainfall and lighting hours in its growth period exists critical value.
树种耐盐临界值，应以林木生长期测定为准。
Critical value of salinity tolerance should be determined during tree growth period.
树种耐盐临界值，应以林木生长期测定为准。
Critical value of salinity tolerance should be determined during tree growth period.
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