倍数的

The present invention can make osteoplast and hemopoietic stem cell well grow to result in cell proliferation of 23 times and 49 times separately in 10 days, and is suitable for large scale culture of cells.

本发明的效果和益处是可使成骨细胞及造血干细胞在此系统中良好生长，十天后细胞的扩增倍数分别可达到二十三倍和四十九倍，适合细胞的大规模培养。

Question for thinking: C hoose 3 natural numbers from 1 to 100. If the sum of them is a multiple of 3, how many kinds of selections can you get?

思考题：从1至100这100个自然数中取3个数，若这3个数的和恰为3的倍数，有多少种不同的取法？

The greatest efficiency in Agrobacterium-mediated transformation of lettuce cotyledons(2～3 days-old) was obtained by 10-time dilution of Agrobacterium cells, 15-min inoculation time,1-day pre-culture,4-day co-culture and without AS using the MS(Murashige and Skoog\'s,1962) medium supplemented with 0.2 mg/L 6-benzylaminopurine,0.1 mg/Lα-naphthaleneacetic acid,100 mg/L Kan and 500 mg/L Carb,.

在农杆菌介导的皱叶生菜子叶(2～3 day苗龄)转化试验中，采用含BA 0.2mg/L，NAA 0.1 mg/L，Kan 100 mg/L，Carb 500 mg/L的MS培养基，最优的转化条件为农杆菌稀释倍数为10倍，预培养时间为1 day，共培养时间为4 day，浸染时间为15 min，不添加乙酰丁香酮。

The nickel, lead, cadmium and mercury ions were pre-column derived by tera-(2-aminophenyl)-porphine (T2APP). These chelates were enriched by solid phase extraction with C18 cartridge and the enrichment factor of 50 was achieved.

中草药样品用微波消化，样品消化液中的镍、铅、镉、汞用四－－卟啉(T2APP)柱前衍生，然后用ZORBAX RP18固相萃取小柱萃取富集镍、铅、镉、汞的T2-APP络合物，富集倍数为50倍；经富集后的络合物用乙腈和0.05mol？

This paper investigated the physical properties of polyester filament yarn such as tenacity,elongation and boiled water shrinkage by means of analyzing the POY which had been treated by different draw ratio and heating temperature.

通过对不同拉伸倍数及不同温度处理的POY的分析，探讨长丝纱的强度、伸长度及沸水收缩率等物理机械性质。

The effect of additive is investgated by measuring solution loss, foam multiple, the quotiety of water retention, and the causation also are discussed.

通过测量发泡剂携液量、发泡倍数、保水系数的变化规律表征外加剂对发泡剂泡沫性能的影响，并对产生影响的原因进行了解释。

The description of the PMSM"s flux-weakening adjusting speed capability is worked out and expressed with the demagnetizing coefficient and saliency ratio, by which the radical method to enhance the PMSM"s flux-weakening capability is concluded and the flux-weakening capability of PMSM with different magnet structures is compared.

推导出以弱磁率和凸极率为变量的PMSM弱磁扩速倍数表达式，由此得出提高PMSM弱磁扩速能力的根本方法，并比较不同磁路结构PMSM弱磁扩速能力的大小。

After introduction of the recombinant plasmid into BME cells, the capability of proliferation was obviously enhanced and the DNA content was changed, the cell proliferation lifespan was elongated to 13 population doublings to control.

导入STAT3基因后，细胞增殖能力增强，染色体倍数发生变化，细胞的增殖寿命较对照细胞延长了13代，表明导入STAT3基因后，能延长体外培养的牛乳腺上皮细胞的寿命。

Said processor FSB, it is necessary to mention two closely related concepts: the frequency and the frequency, CPU clock frequency is the frequency; multiplier and FSB frequency that is a multiple of the ratio.

说到处理器外频，就要提到与之密切相关的两个概念：倍频与主频，主频就是CPU的时钟频率；倍频即主频与外频之比的倍数。

Also, significant increases of GR inintestine and head kidney were observed, and there were no significant changes of GR inliver and spleen.

肾中过量表达，差异显著(P＜0.05)；GR在肠道和头肾中，表达变化显著(P＜0.05)，上升倍数较高，而在肝脏和脾脏中GR的表达虽然也是增加的，但变化没有肠道和头肾中的明显。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐