All entries can be broken down into two categories: fixed length and extendable. The information stored in three of the columns is different for the two types of entry.
所有条目均可分成两类：固定长度和可扩展长度。
The strong covalent bonds along the fiber's length give them a very high modulus in this direction because to break or extend the fiber the bonds must also be broken or moved.
沿着纤维长度有很强结合力的共价结合在这个方向上给予复合材料很高的模量，因为要损坏或拉伸纤维就必须破坏或移除这种结合。
It is shown that the ice load tends to lower and the broken length become shorter in this mode.
结果表明，上述考虑将使冰力和冰的断裂长度趋于减小。
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