最近的研究结果表明，五颜六色的琥珀可能是由几种松柏科植物产的树脂形成的。
Recent scientific studies indicate the probable existence of several resin producing coniferous trees that may account for the variations seen in the colour of amber.
通过学习自然景物模拟的基本方法，在计算机上实现松柏科树叶的模拟生成。
Through studying simulation of natural phenomena, the basic methodology implemented in the computer simulation of coniferous leaves generation.
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