二倍

The results indicate that the initial deviations of the joint positions match normal probability density function limited in the range of double mean variance.

随机缺陷分析方法中假定结构每个节点的位置偏差符合二倍均方差范围内的正态概率密度函数是可以接受的。

Perisperm The nutritive tissue in the seeds of many Caryophyllaceae.It is a diploid tissue derived from the nucellus rather than the embryosac.

外胚乳：存在于多数石竹科植物的种子中的营养组织，二倍性，来源于珠心而不是胚囊。

The motile and short-lived diploid parasite form, the ookinete, migrates out of the blood meal, across the peritrophic matrix to the mid-gut wall where an oocyst is formed.

能动和短命的二倍体寄生生物形式， ookinete，移居在血粉外面，横跨围食膜的矩阵对中间毁坏oocyst被形成的墙壁。

The product needed better billing to outsell its competition.

我们的产品比他们的畅销，销售量为他们的二倍。

Another form of apomixes in which seeds develop from unfertilized gametes can also be termed parthenogenesis.

以这种方式产生的种子不是单倍体就是二倍体，完全取决于大孢子母细胞是否经历减数分裂。

The phenological phase of reduction division of pollen mother cells and the morphological character of flo-wer buds at reduction division stage were examined.

观察了苹果二倍体品种金帅和国光减数分裂中期Ⅰ染色体配对和构型，提出了进一步研究这一问题的设想。

The flash of light that accompanies an electric discharge in the atmosphere (or something resembling such a flash); can scintillate for a second or more

lightning： lightning ：英国闪电式超音速战斗机"闪电"是英国航空工业自行设计并制造过的唯一一种二倍音速飞行的双发单座喷气战斗机。

Three different populations of diploid potato were employed to study chip color in this experiment. Seven different processing traits among the three populations were analyzed. According to a certain program of chip processing, all genotypes in three populations were evaluated strictly on their chip colors. The molecular markers of chip color genes were studied with the method of Bulked Segregant Analysis.

本研究选用了3个不同组合的二倍体马铃薯炸片群体材料，在群体间对7个不同的加工性状进行了比较分析，按照一定的炸片加工程序对3个群体所有单株进行了炸片颜色鉴定，并采用混合分组分析方法进行了马铃薯炸片颜色基因的RAPD标记。

This is roughly twice the level of spousal spying that is found among men.

这个数字大概是老公侦查老婆的二倍。

To induce diploid gynogenesis in summer flounder, eggs were fertilized with heterogenous cryopreservative sperm of Lateolabrax japonicas , which was irradiated with UV ray to be genetically inactivated, and cold shock was used to prevent extrusion of the second polar body.

中文摘要：用冷冻保存的花鲈精子作为异源精子，采用紫外线对精子进行照射使其遗传物质失活，然后与卵子进行"授精"，可以刺激犬齿牙鲆鱼卵进行雌核发育，在受精后一定时间采用冷休克处理"授精"卵，抑制第二极体排出成功获得了犬齿牙鲆雌核发育二倍体鱼苗。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。