A magnificent gradation of grey crystals sparkles at the centre of the flower.
渐变的灰色水晶石绽放在花朵的中央。
A magnificent gradation of grey crystals sparkles at the centre of each flower.
渐变的灰色水晶石绽放在花朵的中央。
The leading factors of soil ecosystem in arid area are discussed based an the application of the principle and method of grey relational gradation, the important part of grey system theory.
本文应用灰色系统理论—灰色关联识别原理和方法，探讨干旱区土壤生态系统的主导因子识别。
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