多因子的

BACKGROUND: Muscle-derived stem cells have some problems in purification, amplification and directional differentiation during in vitro culture. Basic fibroblast growth factor as a membrane of bioactive factor has been paid great attention, due to its biological activity.

背景：肌源性干细胞在体外培养过程中存在纯化、扩增、定向分化等难题，碱性成纤维细胞生长因子作为生物活性因子的一员，因其生物活性的多效性而备受关注。

The expression of gibberellin biosynthesis genes are regulated by several endogenous and environmental factors , inc...

GA生物合成相关基因的表达受到多种内源和外源因子的调控，其中研究较多的是发育阶段、激素水平和光信号等内源及环境因子的调控。

More children with headaches were in the highest quintile of risk for these factors, as well as in the highest quintile of risk of having at least 3 or more of these factors.

更多有头痛的儿童，他们这些因子的风险处於最高的四分位数，且有3种以上这些因子的风险也是最高的。

For the sake of the image reconstruction efficiency we shortened the reconstruction time almost 100 times by parameter table method. In algebra iterative algorithm we found the range of relaxation parameter is very different. The range of relaxation parameter of ART was narrower than that of SIRT. Different methods of data access will influence on the quality of reconstruction image.

在代数迭代算法中，通过模拟图像的重建发现，ART算法和SIRT算法松弛因子的选择有很大的不同，SIRT的松弛因子选择范围偏小，而ART的松弛因子选择范围要宽得多；数据访问方式的不同，对重建的图像有一定的影响；提出了最优迭代次数的判据，避免了在迭代时迭代次数选取的盲目性。

The patho-factor of pulmonary fibrosis is very complex. With the development of cytobiology and molecular biology there are much proof shows PF is a disease induced by multiple factor, multiple organ and multiple cell; and happens between cells and mesenchyma in multiple path.

肺纤维化(pulmonary fibrosis，PF)形成的病理因素十分复杂，近几年细胞生物学和分子生物学的发展为PF的形成机制提供了大量依据，证明PF是一个多因素、多器官、多细胞、多种因子之间以及细胞与间质成分之间形成的一个多层次，多步骤，多通路的疾病。

Rice production system is a complex system,based on the relationship of crop,environment,and technique,a rice management knowledge model made the management knowledge be presented modally and digitally.

水稻生产系统是复杂的多因子系统，基于水稻生育指标-环境因子-技术措施关系构建的水稻管理知识模型，初步实现了水稻管理知识表达的模型化和数字化。

Epidermal growth factor is equivalent to Stanley Coden in experiments in 1962 by chance found a small peptide, is a multi-functional growth factor.

表皮生长因子(epidermal growth factor， EGF)是Stanley Coden等于1962年在实验中偶然发现的一种小肽，是一种多功能的生长因子。

Compared with other similar present researches at home and abroad, this paper overweighs in its innovation, which are first making a clear distinguish between the ecological sensitivity analysis and the ecological feasibility estimation, second superposing single factor charts when analyzing the ecological sensitivity, third adopting the evaluation methods of single function and multi-factors to estimate the ecological feasibility.

同当前国内外生态城市规划中的生态敏感性分析和生态适宜度评价相比，本研究有以下几个方面的创新之处：(1)将生态敏感性分析和生态适宜度分析明确区分开；(2)生态敏感性分析时采用单因子图叠加；(3)生态适宜度评价实行单功能多因子评价法。

Multicarrier and multicarrier CDMA systems are the candidates with a greatapplied foreground for future mobile communications system.Some keytechniques in the two kinds of systems,including the reduction of peak-averagepower ratio and so on,are studied in this dissertation.The main contents ofthe dissertation are as following:(1) The way to constitute a multicarrier signal by using any onecomplementary code from multiphase complementary code pair is proposed,andthe upper bound on crest factor for a multicarrier signal is studied.

多载波及其多载波CDMA系统是未来移动通信系统一种很有应用前景的侯选方案，本文针对这两种系统中的峰平功率比减小等关键技术进行了研究，主要内容包括：(1)提出了利用多相互补码对中任一互补码构成多载波信号的方法，研究了多载波信号峰值因子的上边界。

To be disaggregated into various factors, and compared with the other companies in the same sector, return on assets can help a company to find ways to improve its performance.

将资产收益率分解出多个因子，并与同行公司比较各因子的水平，可以发现改善业绩的途径。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。