The selection principle is selecting stand from fine seed source and from them selecting fine individuality.
论述了优树选择应遵循优良种源区选择优良林分，优良林分中选择优良单株的系统选择原则。
When selecting boots, fine, quality leather will be a wise investment.
在挑选靴子时，买精致、质量上乘的皮靴会是明智的。
The selecting principle, using technology, effective experience and synthetical effect for using active carbon on fine chemical production etc.
详实阐述了在精细化工生产中活性炭的选择原则、使用技术、有效经验和综合效果等。
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