leftmost derivation sequence [计] 最左推导序列 ; 最左导出序列
right most derivation sequence [计] 最右推导序列
derivation sequence of length 推导序列 ; [计] 长度推导序列
On the basis of principle and struture of GM(1, 1)model, and a series of derivation and transformation, the direct model operation method from original sequence was given.
从GM（1，1）的建模原理和模型结构特征出发，通过一系列的推导、变换，给出了直接从原始序列出发求解模型的方法。
Methods Using the fundamental solution of the biharmonic operator, the sequence of fundamental solutions is defined and theoretical derivation is given.
方法利用重调和算子的基本解，定义一基本解系列，进行理论推导。
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