四倍的

Our study provides evidence that in human cells abscission is coordinated with the completion of chromosome segregation to protect against tetraploidization by furrow regression.

此项研究表明人体细胞的切割作用，与染色体隔离的完整性协同，保护染色体免于逆向作用导致的四倍体化。

Framing shadowgraphy of UV laser probing with the 4th harmonic Nd-YAG Laser was developed for the diagnosis of Z-pinch plasmas. This system can effectively shield visible light and has advantages of high temporal resolution,large optical angular aperture and wide measuring range.

采用Nd-YAG激光器的四倍频激光(266nm)设计了激光探针分幅阴影成像系统，该系统具有时间分辨率和收光效率高，测量范围大，可有效屏蔽可见光干扰的优点，在钨丝阵实验中成功获得晚期内爆等离子体的分布图像。

As soybean Glycine max (Linn Merril has archean tetraploid chromosomes(2n=40) and belongs to Leguminosae, it is one of the most important resource of plant oil and protein for human beings, many scientist have attached more importance to the genetic soybean.

大豆Glycine max(LinnMerril属豆科蝶形花亚科大豆属的古四倍体(2n=40)植物，是世界上植物油和植物蛋白最重要的来源之一。因此，科学家高度重视大豆的品种改良。

So, the abnormality of embryo sac was one of the factors that induce low seed setting percentage in autotetraploid rice.

从对13个品种的成熟胚囊育性调查的结果来看，同源四倍体水稻胚囊育性是影响其结实率的原因之一。

The autotetraploid plant of sesame may be effectively induced by immersing seeds with 0.3%-0.5%colchicine water solution under 28 ℃ for 24 hours.

在28 ℃的条件下，用0.3%～0.5%的秋水仙素水溶液浸种24 h，诱发产生芝麻同源四倍体的效果较好。

Cruisers are the solid mid-range workhorses of the EVE galaxy. Defense and offensive measure roughly three to four times those of a frigate.

巡洋舰是EVE世界中最常见的中型作战舰只，拥有护卫舰防护和攻击能力的三到四倍。

Although there's still a chasm between prosperous urbanites and rural peasants, average income has quadrupled in the past 25 years.

虽然其城市和乡村的收入差别明显，中国人的平均收入在过去25年里提高了四倍。

She tells us that, for four years, a Russian thermonuclear bomb a thousand times more powerful than Hiroshima bomb circled above our heads.

她告诉我们，有四年，一枚威力大于广岛炸弹一千倍的俄国热核炸弹盘旋在我们的头顶上。

His cake is four times as big as mi.

他的蛋糕是我的四倍大。

Electrophoretogram patterns showed that 15 pairs of microsatellite primers reproducibly produced the well-identifiable bands.

1997从鲤中分离出来的32对微卫星DNA标记，对异源四倍体鲫鲤、红鲫和野鲤每种鱼各4尾的基因组DNA进行了研究。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。