所有条目均可分成两类：固定长度和可扩展长度。
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.
这漫长的吞吐量鞋拔功能扩展长度，使之更容易把你的鞋子上。
This Long Handled shoe Horn features an extended length to make it even easier to put your shoes on.
同时分析了材料刚度衰减对疲劳裂纹扩展速率和扩展长度的影响。
The impact of the material constant and the degradation of elastic modulus are analyzed.
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