Of the importance of the Square of 8 and 9 grid relationship, Schwaller says, “These two lengths, 8 and 9, are related to musical harmony. This is the tone in music and also the ratio between the diameter of a disk and the side of a square of the same surface area.
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And depending on how much material I feel like I need to collect in the new phase, I can always determine that simply by reading off the phase diagram what the ratio of these two segment lengths is.
这取决于我想在新的相中，积累多少物质，只要在相图中直接，读出这两段的长度比，我总能决定出新的相中的物质含量。
We have derived two formulas calculating excess lengths for folded ribbon fiber in loose tube. These formulas are useful for structural design of ribbon fiber cable.
推导出了成叠带状光纤在松套管中余长的两个计算公式，此两公式是带状光纤缆结构设计需要用到的基本公式。
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