At the same time, we also have found differences in signal selectivity that may allow us to target some bacteria while ignoring others.
同时，我们还发现了信号选择性的差异，这能够使我们针对一些特定的细菌而不影响到其他。
We cannot say how much of the difference is the result of selectivity of migrants at the time of move and how much results from lowered fertility after moving to the urban setting.
我们无法说这个差距在多大程度上取决于移民时的选择，多大程度上取决于移民城市后生育力的下降。
Analytical advantages of high sensitivity, high selectivity and rapid response time make gas chromatography-toroidal ion trap mass spectrometry (GC-TMS) a preferred detection technique.
高灵敏度、高选择性、快速响应时间等分析优点使得气相色谱-离子阱质谱联用技术(GC -TMS)成为一种首选的检测技术。
Orthogonal Multi-Carrier Modulation(OMCM) is adopted to overcome the frequency selectivity and time variation of low-voltage power line channel.
为克服低压电力线信道的频率选择性和时变性，系统采用正交多载波方式传输信息。
High data transmission rates and high mobility give rise to time - and frequency - selectivity in wireless communication channels.
高数据传输速率以及终端的高速移动，导致无线通信信道具有时间选择性与频率选择性两个特征。
This biosensor has the advantage of high selectivity, sensitivity and short response time.
该传感器具有选择性好、灵敏度高和响应时间短等特点。
Organic solvent affected the migration time and the selectivity of separation to some extent.
有机溶剂对迁移时间和分离选择性有一定的影响。
RESULTS and CONCLUSION The new approach could significantly shorten the reaction time, improve the reaction selectivity and the yield, and it is also suitable for industrial production.
结果与结论所用方法可缩短反应时间，提高反应的选择性和收率，可用于工业化生产。
RESULTS and CONCLUSION The new approach could significantly shorten the reaction time, improve the reaction selectivity and the yield, arid it is also suitable fur industrial production.
结果与结论所用方法可缩短反应时间，提高反应的选择性和收率，可用于工业化生产。
As the most important constituent of chemical sensor, chemical selective membrane directly affects chemical sensor selectivity, stability, repeating and responsive time, etc.
化学选择膜作为化学传感器中最为重要的组成部分，直接影响到化学传感器的选择性、稳定性、重现性及响应时间等性能指标。
This method has characteristic of less time consuming, practicality, simple operation and high selectivity.
结果表明，该方法具有分析速度快、实用性强、操作简便、选择性好等特点。
The hydrogenation efficiency, selectivity and life-time of copper-based catalysts have been improved after the modification of the catalysts.
铜催化剂改良后，提高了加氢效率、选择性和使用寿命。
As a promising sample preparation technique, SPE costs less time, selectivity, more effective than traditional liquid-liquid extraction.
该技术比传统液—液萃取用时短、二次污染小、选择性好，是一种很有前途的样品预处理技术。
It features high sensitivity and selectivity and fast restored response time.
具有灵敏度高，选择性好，响应恢复时间快等优点。
The result showed proper reaction temperature, catalyst to oil ratio and short reaction time may detriment thermal cracking reaction, hydrogen transfer reactions, and get high propylene selectivity.
结果表明：适当的反应温度，剂油比，反应时间短，可能损害的热裂化反应，氢转移反应，并获得高的丙烯选择性。
The fluorescence method is not only simple but also excellent in real space, real time, high sensitivity and selectivity.
荧光分子探针检测法不仅简便，而且灵敏度、选择性、时间分辨、实时原位检测方面均有突出优点。
The conversion of methyl propionate and the selectivity to propanol were obviously affected by reaction time, reaction temperature, hydrogen pressure and solvent volume.
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。
Reproducibility, stability, resp-ponse time and selectivity of the new fiber optic sensor are reported.
报道了传感器的重现性、稳定性、响应时间和选择性。
The effects of concentration of sensitizer, initial concentration of norbornadiene, reaction time and solvents on conversion of norbornadiene and selectivity of quadricyclane were investigated.
考察了敏化剂的用量、反应物初始浓度、反应时间和溶剂对降冰片二烯光敏异构化反应的影响。
In this paper, the regularity impact of technological conditions on feed-gas conversion, space-time yield and methanol selectivity is studied, based on the basic nature study of C307 and C9 catalysts;
本文在C307与C9催化剂结构特性研究的基础上，研究了工艺条件对甲醇合成原料转化率、产率以及甲醇选择性的规律性影响；
The effects on the catalytic activity and selectivity of reaction temperature, time, pressure, quantities of catalyst and the kinds of solvent were observed.
分别考察了反应温度、反应压力、反应时间、催化剂用量及反应溶剂对反应的影响。
The effects of mole ratio of reactants, selectivity and quantity of catalyst and reaction time on the conversion rate have been studied.
并对原料配比、反应时间、催化剂的选择及用量对转化率的影响进行了讨论。
Some recent important advances in fluorimetry with respect to sensitivity, selectivity, instrumentation, time-resolved spectroscopy and application were briefly introduced.
简要介绍了荧光分析法在灵敏度、选择性、测量仪器、方法应用和时间分辨光谱学等方面近年来的某些重要进展。
Both of methods above possess of the advantages of good selectivity, high sensitivity, distinguished flexibility, easily operation, time-saving and friendly to the environment.
该方法具备选择性好，灵敏度高，操作简单，节省时间，对环境友好等特点。
Because of its good time-delaying Character, Bessel filters are widely used when selectivity is not so important, and time-delaying performance is highly demanded.
贝塞尔型滤波器具有优良的时延性，因而常用于选择性要求低而时延性要求高的场合。
It is a challenging research topic to obtain higher propane conversion and higher propylene selectivity at the same time in the reaction of propane oxidative dehydrogenation (ODH).
在丙烷氧化脱氢反应中，同时获得高的丙烷转化率和丙烯选择性是具有挑战性的研究内容之一。
At the same time, boride thus formed covered the surface acid sites and blocked the pores and channels, leading to higher para-selectivity.
同时，硼化物覆盖了表面酸中心，堵塞了孔道，因而提高了反应的选择性；
At the same time, boride thus formed covered the surface acid sites and blocked the pores and channels, leading to higher para-selectivity.
同时，硼化物覆盖了表面酸中心，堵塞了孔道，因而提高了反应的选择性；
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