许多味觉和嗅觉基因显示出选择性压力的迹象，也许反应了当人们的生活从流动到稳定时食物上发生的变化。
Many genes for taste and smell show signs of selective pressure, perhaps reflecting the change in foodstuffs as people moved from nomadic to sedentary existence.
结论：抗菌药的用药频度，即抗菌药应用的选择性压力，是影响细菌耐药性变异最主要的因素之一。
Conclusion; the DDDs, that is the selective pressure of the antibacterial usage, is one of the main influencing factors of the variation of drug resistance.
此外，由于人类意识思维的进化，对产生发育更多的婴儿有较少的选择性压力，因为增加的能力可以保护人类婴儿。
Furthermore, since the evolution of conscious thought in humans, there is less selective pressure to have more developed infants at birth because of the increased ability to protect human infants.
这就导致选择性的压力，当一个男人必须相当严肃的对待他试图接近的异性。
This would lead to a selective pressure on men to take the task of propositioning very seriously indeed.
治疗由于解剖引起的压力性尿失禁其他的微创方法如选择性的血管治疗。
H. Another minimally invasive procedure for the treatment of stress incontinence caused by intrinsic sphincter deficiency is periurethral injection.
今后对松香催化加氢反应的研究主要是研制具有更高活性和选择性的新型催化剂，以进一步降低温度和压力。
The future study on catalytic hydrogenation of rosin will mainly be concentrated on the preparation of new catalysts with higher activity and selectivity to further lower pressure and temperature.
提高压力、气层厚度和降低温度可以有效地改善气体热辐射的选择性。
Increasing the pressure or the thickness of gas and decreasing the temperature can improve the selectivity of gas radiation effectively.
分析了温度和压力、气体选择性、电路特性等干扰因素及补偿方法。
It also analyses some factors such as temperature, pressure, gas selectivity, circuit characteristic etc. and its compensation methods.
可选择性降低肺动脉压力的药物已被证实有预防与治疗高山肺水肿的效益。
Drugs that can selectively lower pulmonary artery pressure have been shown to be of benefit in preventing and treating HAPE.
化学损伤型动物模型：旨在通过选择性的降解蛋白多糖减少间盘容积从而达到减轻受累神经根压力的作用。
Chemical injured model: Volume of disc was reduced by selectively degrading proteoglycan so as to relieve the pressure of involved nerve roots.
目的：观察芎归滴丸对选择性去窦弓神经大鼠动脉压力感受反射敏感性的影响。
OBJECTIVE:To observe the effect of Xionggui dripping pills on sensitivity of baroreflex in selective sinoaortic denervated rats.
在温度恒定的情况下，EPA -EE和DHA - EE的容量因子和选择性因子都随压力的升高而减小。
When temperature is constant, the capacity factors of both EPA-EE and DHA-EE and separation factors decrease with the increasing of pressure.
反应时间、温度、氢气压力和溶剂体积对丙酸甲酯加氢转化率和目标产物丙醇选择性都有很大的影响。
The conversion of methyl propionate and the selectivity to propanol were obviously affected by reaction time, reaction temperature, hydrogen pressure and solvent volume.
实验结果还表明，压力也是影响费托合成产物选择性的重要因素。
The experimental results also show that pressure is one of the important factors to influence product selectivities of FT synthesis.
本研究结果显示，抗体这一免疫压力在病毒的变异中可能只起选择性作用，而不起促进变异的作用。
The result demonstrated that the immune selective pressure only had selective function, but not the creating - mutation function in the mutation of virus.
本研究结果显示，抗体这一免疫压力在病毒的变异中可能只起选择性作用，而不起促进变异的作用。
The result demonstrated that the immune selective pressure only had selective function, but not the creating - mutation function in the mutation of virus.
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