These rivers and river systems are known as "exogenous" because their sources lie outside the arid zone.
这些河流和河川系统被称作“外源河流”，因为它们的源头位于干旱地区之外。
Apart from the difficulty of forecasting the impact of exogenous events, investors may have another reason for ignoring them.
除了难以预料外源性事件所带来的冲击力外，投资者们忽略这些事件可能还有其他原因。
Swine flu is just the latest in a series of "exogenous events" (risks originating outside the financial system) to test the markets.
“猪流感”不过是最近考验目前市场的众多“外源性事件”(来自金融体系之外的风险)之一罢了。
The CD24-Siglec complex also recognizes heat shock proteins, another class of endogenous danger signals, but does not respond to lipopolysaccharide or poly-(dI:dC), two exogenous danger signals.
CD24-Siglec复合体还可识别另一种内源性危险信号热休克蛋白，但对脂多糖或poly-(dI:dC)这两种外源性危险信号均无反应。
An exogenous shock to exports will lower the equilibrium output of the economy.
一个外来的出口冲击会减少经济体的均衡产出。
Every model includes exogenous and also endogenous variables which must be estimated.
每一个模型都包括需要估计的外生变量和内生变量。
The exogenous gene expression was analyzed by indirect immunofluorescence assay (IFA).
采用间接免疫荧光法(IFA)检测外源基因的表达。
The large intestine does not play a major role in the absorption of exogenous phosphorus.
大肠对外源磷的吸收不起主要作用。
The expression of exogenous genes were analyzed by indirect immunofluorescence assay (IFA).
采用间接免疫荧光法(IFA)检测外源基因的表达。
Objective To investigate the effect of exogenous manganese intoxication on rat hippocampus.
目的：研究外源性锰中毒对大鼠海马的影响。
AIM: to explore the effect of exogenous hyaluronic acid on wound healing in histomorphology.
目的：探讨外源性透明质酸对创面愈合组织形态学方面的影响。
The institutional change is the coefficient result of exogenous variable and endogenous variable.
制度变迁的产生是外生变量和内生变量共同作用的结果。
An exogenous variable is a variable that is not explained by the model but rather is taken as given.
外生变量是模型本身不予以解释而是当成已知的变量。
The frequency of variation and utilization of exogenous DNA introduction in rice breeding were also discussed.
同时讨论了外源DNA导入水稻的变异频率和在水稻育种中的应用前景。
Objective: to understand the effects of exogenous androgen on the skeletal muscle fiber and its motor endplate.
目的：观察雄激素对骨骼肌肌纤维及其运动终板形态的影响。
A need for exogenous nucleotides may be expected when the body is growing rapidly or encounters immune challenge.
但机体在快速生长或受到免疫挑战时，需要外源添加核苷酸。
But in truth, sometimes exogenous estrogen makes pain worse, sometimes it doesn't, and sometimes it makes it better.
不过，事实是外源性雌激素有时候会加剧疼痛，有时则不会，有时候还会缓解疼痛。
Objective: to elucidate the role of bone marrow stromal cells in cooperation with exogenous cytokines in hematopoiesis.
目的：探讨胎儿骨髓基质细胞与外源性细胞因子的协同造血支持作用。
Whether money supply actually is endogenous or exogenous is always an endless debatable problem in the financial field.
货币供给究竟是内生的还是外生的，这是货币金融领域始终争论不休的问题。
The very multiplicity of responses to exogenous chemical growth regulators points to the essential contrast with animal hormones.
对外源化学生长调节剂的十分多样化的反应，表明了与动物激素的主要差别。
Agrobacterium and gene gun have aroused most attention among various genetic transformation methods for exogenous gene into maize.
目前外源基因导入玉米受体细胞的方法很多，最受瞩目的是农杆菌介导法和基因枪法。
International technology diffusion is one of the important exogenous variables for promoting technology progress and economic growth.
国际技术扩散是促进技术进步和经济增长的重要外生变量之一。
In a word, a syndrome of externally contracted heat disease varies with the six exogenous factors and the constitution of the patient.
总而言之，外感热病的证候表现，可因六淫以及患者体质的差异而有所不同。
New Growth Theory has made technological change endogenous, overcoming the flaw of exogenous technology in the Neoclassic Growth Theory.
在经济增长理论研究中，新增长理论克服古典增长理论中技术为外生因素的缺陷，把技术进步内生化。
Unlike the endogenous drives for European integration, the major impetus for East Asian cooperation is from exogenous structural pressures.
与欧洲对一体化有着内生的需求不同，东亚的合作动因主要来自外生的结构性压力。
Highly conserved DNA-repair and cell-cycle checkpoint pathways allow cells to deal with both endogenous and exogenous sources of DNA damage.
高度保守的DNA修复和细胞周期检查点通路使得细胞能够应付各种内源性或外源性因素引起的DNA损伤。
The research progress of cotton fiber quality improvement using exogenous genes was summarized to provide help for cotton molecular breeding.
综述了利用外源基因导入手段进行棉花纤维品质改良的相关研究进展，旨为棉花分子育种研究提供帮助。
The research progress of cotton fiber quality improvement using exogenous genes was summarized to provide help for cotton molecular breeding.
综述了利用外源基因导入手段进行棉花纤维品质改良的相关研究进展，旨为棉花分子育种研究提供帮助。
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