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1)  pre-sequence
前序列
1.
Though a linguistic phenomenon always occurring in all forms of conversation,pre-sequence has so far received inadequate academic attention.
前序列(pre-sequence)是话语中的常见现象,但在研究上却没有引起足够重视。
2.
However, the traditional researches only take the short and simple daily conversations as their data base, and shed little light on the pre-sequence with more complex structure and other paralinguistic factors on formal occasions.
前序列是话语中的常见现象,传统研究对这一现象的分析仅从日常生活的简单对话中取材,而对正式场合中前序列的复杂结构和丰富构成涉猎甚少。
2)  Pre-X sequence
前-X序列
3)  Preamble [英][pri'æmbl]  [美][prɪ'æmbḷ]
前导序列
1.
With this algorithm,fast cell search can be achieved using the new hierarchical synchronous sequence instead of the original preamble to accomplish symbol timing,frequency offset estimation and cell ID detection.
该算法采用新的分级同步序列取代原有的前导序列(preamble),来完成符号定时、频偏估计和小区识别。
2.
The timing algorithm is proposed based on the preamble defined in IEEE802.
16a定义的前导序列(preamble)的基础上提出的,不仅独立于频偏,而且利用前导序列(preamble)的对称性结构使得计算复杂度降低。
4)  preamble sequence
前导序列
1.
The time impulse response of the channel is estimated using the preamble sequence.
用该方法估计出前导序列所在符号的信道时域冲激响应,在假设信道冲激响应为线性变化的基础上,使用预滤波器和ICI干扰消除滤波器来消除ICI干扰。
2.
A scheme based on cyclic-shifted preamble sequences is proposed for carrier frequency synchronization in OFDM system.
提出一种基于循环移位前导序列的正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)系统载波同步方法,该方法根据离散傅里叶变换(Discrete Fourier Transform,DFT)的时移性质,构造循环移位前导序列,并设计了两个频偏估计器。
5)  Foreshock sequence
前震序列
6)  preS
前导序列
1.
Expression of Human Hepatitis B Virus Surface Antigen Gene with and without preS in Transgenic Tomato;
含与不含前导序列的乙肝病毒表面抗原在转基因番茄中表达的研究
2.
We construct plant expression vectors (pRoKII) with hepatitis B surface antigen gene(HBsAg) alone or with it conbined with preS,and introduce the recombinant plasmids into Agrobacterium tumenfaciens.
报道了将乙型肝炎病毒(adw 亚型)表面抗原( H Bs Ag)基因和 H B Ag 及其前导序列( H Bs Ag+pre S1+ pre S2)基因分别插入植物表达载体 p Ro K I I的 Ca M V35 S启动子下游,构建为重组质粒p R H B和p R P,并将其分别导入农杆菌 L B A4404
补充资料:前导序列
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性质:一段mRNA,从5′一端起至结构基因第一编码开始点(通常AUG)为止,在蛋白质合成过程中它不被翻译。它可能含有一个衰减子。

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