四体

Tetraploid plants exhibited sighificant difference in morphology of flowers,pollens,stomates,shape and size of seeds and fruits comparted with the diploidy.

四倍体植株在花冠、气孔、花粉、种子和果实的形态和大小方面均与二倍体植株表现出明显的差异。

Soybean evolution from the ancient tetraploid flowers pollinate crops since the diplont, low level of genetic variation within species, genome larger and contains extensive areas of reproduction and rich repeat sequences, chromosome and small cells to carry out genetic research, which makes soybean genetic map study clearly behind other cr...

大豆是由古四倍体演变而来的二倍体自花授粉作物，种内遗传变异程度低，基因组较大并含有广泛的复制区和丰富的重复序列，染色体又很小，难于进行细胞遗传学研究，这使得大豆遗传作图研究明显落后于其它作物。

Basing on the famous Schur theorem on real quaternion division algebra and the operation of matrix, some properties and judging criterions of skew self-conjugate matrix are obtained. Several theorems about characteristic value, similar decomposition and real expression of skew self- conjugate matrix are gained.

借助四元数体上的Schur三角分解定理和体上矩阵的运算，得到了斜自共轭矩阵的一些性质及判定准则，获得了斜自共轭矩阵的实表示、相似分解以及特征值的几个定理。

Durum wheat is tetrapolid (28 chromosomes) and contains two basic genomes, whereas common bread wheat (Triticum spp.) is hexaploid and contains three basic gonomes. Durum is best adapted to growing in arid regions of the world: Italy and other areas in Southern Europe; Turkey and Syria in the Near East; Morocco and Algeria in Africa; Soviet Union; and Canada and Northern United States in North America.

多伦小麦产品是四倍体(28个染色体)并包含两个基本基因组，而普通的面包粉是六倍体并包含三个基本基因组，多伦小麦可以很好的适应生长于世界上的干旱地区环境，例如：意大利和南欧一些地区；近东的土耳其和叙利亚；非洲的摩洛哥和阿尔及利亚；前苏联；以及北美洲的加拿大和美国北部。

The distribution of hybrid chlorosis Ch1 gene and the T-type cytoplasm fertility restoring genes in Chinese endemic wheats were studied using the testors QA1104 (T-type cytoplasm sterile line, with hybrid chlorosis Ch2 gene) and Khapli emmer (with hybrid chlorosis Ch1 gene).

本研究以T型不育系QA1104（具有杂种黄化基因Ch2）和Khapli（具有杂种黄化基因Ch1）为测验种，对中国特有小麦等六倍体小麦类型和一些四倍体小麦类型中的T型胞质育性恢复基因和杂种黄化Ch1基因的分布进行了研究。

The fourth section of the Mass is the Eucharistic Prayer.

第四部分的群众性，是圣体圣事的祷告，本节开头序言中，介绍祈祷结束与 sanctus ，然后按照中央圣体祈祷，或佳能，其中载有叙事的耶稣'学会感恩祭。

The results showed that diploid and tetraploid had higher root activity, flagleaf soluble protein content, SOD and CAT activity before anthesis. However, the rootactivity, flag leaf soluble protein content, SOD and CAT activity of diploid and tetraploiddeclined more quickly and became lower than those of hexaploid species from 15 days afteranthesis. While MDA content increased more quickly and became higher than those ofhexaploid species from 5 days after anthesis. Correlation analysis showed that delaying the flag leaf senescence can promoted transfer of nitrogen and dry matter, increasedaccumulation of nitrogen and dry matter after anthesis, enhanced grain and protein yield.

结果表明，与普通小麦和小黑麦相比，二倍体和四倍体材料开花以前具有比较高的根系活力、可溶性蛋白含量、SOD和CAT活性；开花以后，根系活力、旗叶可溶性蛋白含量、SOD和CAT活性快速下降，MDA含量快速上升，衰老加快；相关分析表明，延缓小麦旗叶衰老进程，可以促进花后氮素和干物质运转，增加花后氮素和干物质积累，提高籽粒产量和籽粒氮素积累量。

The most disturbing of the Geomancer's power, however, is his ability to separate his being into multiple selves, each as powerful as the original and making him potentially four times the trouble for the unlucky who encounter him.

然而土占师最扰人的能力是他能将自身的存在分离产生多个另体，每个另体的能力都与本体不相上下，让他成为惹上他的倒楣鬼的四倍大的大麻烦。

The experimental results showed that Rhus Laccase polymerized the guaiacol to various low-molecular-weight polymers, two of which were identified to be tetramer and pentamer.

结果表明：漆树酶能使愈创木酚聚合为低分子聚合物，其中2种产物经鉴定为愈创木酚的四聚体和五聚体。

The number of chloroplast in stomata guard cell, density, length and width of stomata were observed.

以苹果和梨的二倍体和多倍体为试材，比较了气孔保卫细胞叶绿体数目、气孔密度、气孔长和气孔宽四个性状与倍性的关系，分析各个性状用于倍性鉴定的可靠性，并采用两类性状同时进行判别分析，建立判别分析方程。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。