四体

Based on Phylogenetic analysis of sequences from these 10 phytoplasmas using PAUP (phylogenetic analysis using parsimony) software, these phytoplasmas could be classified into five groups. These phytoplasmas groups and strains were: group 1, sweetpotato witches' broom, mainland China strain of sweetpotato witches' broom, peanut witches' broom and Ipomoea obscura witches' broom; group 2, loofah witches' broom; group 3, elm yellows; group 4, rice yellow dwarf and sugarcane white leaf disease; group 5, New Jersey strain of aster yellows and western strain of aster yellows.

从spacer序列堆衍的亲缘演化树显示这10种植物菌质体可分为5群：第一群，甘薯簇叶病、甘薯簇叶病、花生簇叶病及细花牵牛簇叶病等菌质体；第二群，丝瓜簇叶病菌质体；第三群，榆树黄化病菌质体；第四群，水稻黄萎病及甘蔗白叶病菌质体；第五群，翠菊黄化病菌质体。

The invention discloses a 3, 5-2-0-(4-chlorobenzene chlorobenzene)-2-deoxidising- D-red-furanoside that contains alpha body and beta body. The method includes the following steps: dissolving chlorine indicant into tetrahydrofuran, quickly adding to alcoholic solutioin, whisking and reacting, after reacting, vacuuming and steaming solvent to gain mixture of alpha body and beta body, taking separation by column chromatography to gain separated alpha body and beta body.

本发明公开了一种3、5-二-O-(4-氯苯甲酰基)-2-脱氧-D-赤-呋喃糖苷，它具有式表示的α体和式表示的β体，制备方法采用在室温下，将氯糖苷溶于四氢呋喃中，然后快速加入到醇溶液中，搅拌下进行反应；反应结束，减压蒸掉溶剂，得到白色固体，将该固体用石油醚溶解，过滤除去不溶物，再次减压蒸去溶剂，得到白色α体和β体的混合物，用柱色谱法进行分离，得到单独的α体和β体。

Diploid, triploid, tetraploid, pentaploid and hexaploid hybrid plants have been recovered from protoplast fusion, among which the tetraploid ones accounted for almost90%.

这些体细胞杂种有二倍体、倍体、倍体、倍体和六倍体，但主要是四倍体。

Molecular docking study of telomerase TMPYP4 quadruplex stabilization role Abstract: The purpose of ligand TMPyP4 to find telomerase TMPyP4 quadruplex in the best mode.

分子对接法研究TMPYP4对端粒酶四链体的稳定化作用摘要：目的以TMPyP4为配体，寻找TMPyP4在端粒酶四链体上的最佳作用方式。

In this theory, we firstly introduce the basic theory of discrete wavelet transform and lifting scheme. Secondly, we adopt a fully pipelining VLSI architecture for lifting-based DWT. Hence, we can operate on higher working frequency. Besides, we merge a QCB-based DWT method to achieve the higher parallelism for JPEG 2000 encoding system. By changing the output timing of the DWT process, the internal tile memory size can be reduced by a factor of 4. Moreover, the architecture can efficiently perform shape-adaptive DWT and solve boundary extension and subsampling problems. Finally, according to the comparison results with other architectures, the efficiency of proposed architecture is proven.

在这篇论文中，首先我们介绍离散小波转换和提升式架构的基本理论，接下来我们改良提升式架构采用全管线化的硬体架构，因此我们可以操作在较高的工作频率，并且我们合并了以四个编码方块为基础的方式来使得JPEG 2000编码系统具有更高的平行度，藉著改变离散小波转换的输出时序，内部的记体体需求可以减少为原本的四分之一，接著此架构也可以有效地支援可适应形状的离散小波转换，同时解决了边界延伸和子取样的问题，最后根据与其他架构比较的结果，来说明所提出之离散小波转换架构的贡献。

Pooling together thedata from comparing the 4x original varieties with their corresponding 2x varietiessince 1979,it was found,that tetraploidy could cause variation of manyagronomic traits.

自1979年对四倍体水稻原种(4x)和相应的二倍体水稻品种(2x)进行了对比，结果发现，四倍体水稻原种的许多农艺性状发生了变化。

That indicates there might be differences in respiring and feeding between diploid and triploid Pacific oysters.

二、对四倍体牡蛎精子的透射电镜观察结果表明，四倍体太平洋牡蛎的精子的形态结构与其二倍体基本相同，都是由头部、中段和鞭毛三个部分组成。

The results showed that①the fos like immunoreactionwas increased in the rat frontal cortex,cingulate cortex,islands of Calleja and caudate putamen in the acute group;②the FLI was increased in the rats frontal cortex,mammillary nucleus,amygdaloid nucleus and caudate putamen in the chronic group;③...

结果显示：1一次给药后额叶皮质，扣带回，嗅结节岛，纹状体四个部位的免疫反应阳性细胞数显著增加；2长期给药组额叶皮质，乳头体核，杏仁核和纹状体四个部位的 C- FOS免疫反应阳性细胞数显著增加；3不同抗抑郁药作用的部位有差异。

The tetraploids of C.reticulata from the localities with the altitude of over 1800 m were gross-morphologically similar to the hexaploids, but those growing between 1100 ～1800 m were different to some extent from the hexaploids.

中海拔(1800m)以上的四倍体的云南山茶花外部形态特征与六倍体类型比较相似，而低海拔(1100～1800 m)的四倍体类型的外部形态特征则有些不同，但核形态结构是比较相似的。

The main products are SF-1 (as the base plate of the middle sintering Copper Balls powder, surface modified PTFE); SF-2 (plate as the base of the middle sintering Copper Balls powder, surface modified POM); JDB (For brass, bronze, iron-based body, inlaid solid lubricant); dual-metal (steel as the base for the various models of the surface of copper); production of various enterprises have also filled with PTFE, the curve of bearings, bearing powder metallurgy, by Chun-for the Pistons, Piston Ring, ethylene tetrafluoroethylene ring, ring.

主要产品有SF-1（钢板为基体中间烧结铜球粉，表面为改性聚四氟乙烯）；SF-2(钢板为基体中间烧结铜球粉，表面为改性聚甲醛)；JDB（为黄铜、锡青铜、铸铁为基体，镶嵌固体润滑剂）；双金属（钢板为基体表面为各种型号铜）；企业还生产各种填充四氟带、曲线轴承、粉末冶金轴承、减震器活塞、活塞环、四氟乙烯密封圈、环。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。