搜索 - 科创

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小龙虾的变种，世界唯一的单性繁殖虾，不分公母，可以交配生殖，一只也可以生殖（LGBT的极致？）。淘宝有售，可以群养，群养时间长了很容易爆缸。1990年代出现在德国水族市场，没有天然原生种群（只有流失到...

乙烷存在两种构象，分别为交叉式构象（Staggered）和重叠式构象（Eclipsed）。这两种构象中，交叉式的能量更低，为优势构象。现在我们已经知道，造成两种构象的能量差异的原因并不主要是空间效应，...

1.如何将PRO/E的图形放到word文档里　　方法一：先在Pro/E中在线框模式(在绘图模式下也可以)下直接另存为*.CGM文件，然后在WORD中插入，此方法效果非常好，图像是矢量图形，所以可以任...

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