因子

The extinction of species is concerned with the degree of threat by biotic and abiotic factors.

一个物种的灭绝是与其受生物因子和非生物因子的威胁程度相关的。

In this paper, we study a necessary and sufficient condition that complete bipartite graph exists factors.

讨论了完全偶图存在 [1，2 ]因子的充分必要条件，并给出了 [1，2 ]因子的计数

This paper presents the formula of enumeration of DS-factors of a complete bipartite graph .

本文研究完全偶图 Km，n的DS-因子计数，给出了Km，n的DS-因子计数公式。

Objective:The aim of this study is to determine the content of vascular endothelial growth factor and basic fibroblast growth factor in the wound fluid during maxillofacial soft tissue blast injury, and to evaluate their effects on angiogenesis of wound healing.Methods: The rabbit model of maxillofacial blast injury was made by KTY_04 blasting cap.

目的：探讨颌面部软组织爆炸伤愈合过程中血管内皮细胞生长因子和碱性成纤维细胞生长因子的分布和在伤口液中含量的动态变化，及其对血管再生的刺激作用。

Objective To determine the content change of vascular endothelial growth factor and basic fibroblast growth factor in the wound fluid and their effect on angiogenesis in the wound healing during healing of maxillofacial soft tissue blast injury. Methods The improved rabbit model of maxillofacial blast injury was made by KTY-04 blasting cap.

摘 要：目的探讨颌面部软组织爆炸伤愈合过程中血管内皮细胞生长因子和碱性成纤维细胞生长因子在伤口液中含量的动态变化及其对创伤愈合中血管再生过程的刺激作用。

Borda value is also used in the risk matrix to rank the risk factors.

将外包风险大小等级视为风险影响与风险发生概率联合作用的结果，并运用客观计算的Borda值对风险因子的等级进行排序，得出风险因子的Borda序值。

Many typical problems are studied and compared with boundary collocation method, traditional finite element method and analytical methods. The results indicate that the method is accurate and simple for stress intensity factor computation and is easy to be used in practical engineering.

文中作了大量的裂纹应力强度因子计算，与边界配置法、传统有限元法以及解析法进行了系统的比较，结果表明该方法用于应力强度因子计算不但精度较高，而且简便易行，便于工程实际应用。

These receptors have important role in platelet aggregation, bronchospasm and endovascular microthrombosis.

当然，还有很多已知和未知的细胞因子参与了ARDS发病机制，但到底那一种细胞因子的作用最重要？

Based on the understanding of physiological pathway for broodiness, three genes related to broodiness including PRL, PRL receptor, and pituitary-specific transcription factor (POU1F1)-encoding genes were selected as candidates to screen the genomic variation by means of PCR-SSCP protocol and analyze the association with chicken broodiness and other target traits.

禽类血浆PRL水平上升与就巢行为的起始和维持具有密切的相关性，本研究采用候选基因的策略，通过分析就巢行为发生的生理机制，选择与就巢性状密切关联的PRL、PRL受体和PRL转录调控因子——垂体特异转录因子(pituitary-specific transcription factor，POUlF1)基因，采用PCR-SSCP分析检测基因变异，并分析基因变异与就巢性和其它目标性状的相关性。

It can downsample by a factor of 12 and upsample by the same factor.

它可以通过12个因子中的一个来降低采样率，也可以用同样的因子增加采样率。

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。