Influence of neighboring base composition on nucleotide substitution bias was observed in the sequence of nuclear pseudogenes and chloroplast non-coding and coding sequences.
核苷酸替换偏好性受其相邻碱基组成的影响现象已经在核基因组假基因序列和叶绿体基因组的非编码序列和编码序列中发现。
In cryptography, a cipher produced by a composition of a number of substitution and transposition ciphers.
密码学中，由替代密码和置换密码结合使用而构成的一种密码。
Tourmaline is a kind of gem material with complex structure, composition and isomorphous substitution, which resuslt in diverse types and colors of this gem.
辐照处理是碧玺颜色改善很重要的一种方法。
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