查询词典 assignment symbol

No additional data for frequency tracking are need, but higher estimation accuracy and low computational complexity can be obtained. Finally, a kind of optimizing joint algorithm for symbol timing, frequency synchronization and channel estimation is proposed. The false alarm probability and miss detect probability of the symbol timing are derived. We proved that the time－frequency offset domain random sequence sliding in the frequency offset direction is orthogonal with the original random sequence, and proposed a new integer frequency offset estimation algorithm. The coarse estimation methods for fractional frequency offset both in AWGN and multipath channels are proposed too.

最后，提出了一种优化的符号同步、频偏估计和信道估计的联合算法，推导了符号同步方法的虚警概率和漏检概率，给出了随机序列在时间－频率偏移域沿频率偏移方向滑动后与原序列近似正交的证明，提出了一种新的在时间－频率偏移域沿频率偏移方向进行滑动相关估计整数频偏的方法，提出了在AWGN信道和多径信道下进行小数频偏粗估计的方法，给出了小数频偏细估计的ML估计结果和利用频域PN序列取值特性的简洁的信道估计结果。

E Symbol misalignment – symbolization shall be visually parallel to the edge of the package and must be approximately centered on the package unless otherwise stated on the symbol diagram.

印章偏移–印章以目视看必须和胶体边缘平衡且几乎位于胶体中心，除非印章图形有另外要求，不符合此工艺规范格者退货。

That which is displayed in these works is a symbol of the special spirit of Xinjiang, China's people, and a symbol of bustling economic development of the modern city. I have sought to etch these symbols directly into my shots, to bring direct perceptibility and dimension to these contradictions, which need no further explaining.

在这些作品中所展现的即有西域地区人文精神特征的符号，也有现代都市经济发展忙碌的符号，出现当下的这些符号我都尽可能地印在胶片上，把这个不需要解释的矛盾直观化、平面化、立体化。

Yang Xiong, the Han era philologist, once said"Speaking is the sound to express inner heart, while writing is the drawing to describe inner world," which means language is a vocal symbol and character is a drawing symbol.

意思是，语言是表达内心思想的声音符号，文字是表达内心思想的图画符号，也就是说，文字不是通过记录语言而表意的，文字本来就不是记录语言的符号，而是直接表意。

We have the + positive operator, which matches the preceding symbol one (1) or more times, as well as the Kleene star * which matches the preceding symbol zero (0) or more times.

我们有+加号，匹配（1）到任意多次，我们也有克林星*，匹配零到任意多次。

Figure-attached symbol and presentational symbol have a close relationship while many in difference.

比附性象征与表现性象征存在着诸多方面的区别，同时又有着密切的联系。

Translation is a symbol conversion from one language to another symbol of the re-creation activities.

翻译是从一种符号转换到另一种语言符号的再创造活动。

This is the recycling symbol and this symbol is on many of the products we use.

我们有很多用过的东西是可回收的。这是可回收的标记。

We propose a method to eliminate regular expression operator (symbol ?,*,#,+) and wildcards (symbol #,%) by exploiting the structural information and statistical information in DTD directory.

重写为简单路径表达式，其中主要研究了通过DTD字典中的结点信息和元素环的统计信息来消除正则操作符和通配符。

FN and LN (the non-collagenous index) out of ECM were measured by immuno-histochemistry mean, and the accumulation of ECM was measured by typeⅠand Ⅲ collagen ,α-SMA was chosen as a symbol of the activated reposit fat cell. TGF-β〓 was chosen as a symbol of the cellular factor made the reposit fat cell activated. We observed the mechanism of 286 through the variety of the upper indexes during the experiment.

用免疫组化方法测评肝细胞外基质中的非胶原指标FN、LN，胶原指标Ⅰ、Ⅲ型胶原等在实验过程中的变化作为判定ECM沉积增多的事实指标；用a-平滑肌肌动蛋白作为贮脂细胞被激活的标志物指标；用转化生长因子-β〓作为激活贮脂细胞的细胞因子指标；通过观测上述指标在实验中的变化，来探讨"268方"的作用机理。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。