查询词典 asymptotic efficiency

Based on the relationship between the cleaning efficiency of dust detachment and the detachment stress from the baghouse model, the dust cleaning efficiency could be defined under certain conditions.

按照在袋式除尘器实验模型上所测定的粉尘剥离率与清灰剥离力之间的特性关系，确定了已知条件下的粉尘剥离率。

In the three systems, system realizes the crosslinking of PVC bases on the peroxide crosslinking mechanism, the tensile strength of crosslinked PVC has been improved somewhat, the IR spectrum of gel demonstrates that there are characteristic absorption peaks of n-alcohol that belongs to ethanol amine and benzenoid group. From the analysis of gel structure , deduces that the mechanism of crosslinking reaction: under the initiations of peroxide and high temperature, PVC yields macromolecules free radicals, at the same time , styrene"s polymerization and grafting onto PVC takes place, at last the system forms crosslinking structure through coupling between radicals; confirms that triethanol amine can absorb HC1 produced by degradation of PVC, so improves the crosslinking efficiency of peroxide, decreases the HCl"s promotion for PVC"s degradation; deduces that triethanol amine can activate the PVC macromolecules and prolong the free radicals" life-time of PVC macromolecules; the effect to the PVC macromolecule makes styrenes graft reaction easy, and thus improves the crosslinking efficiency.

三种体系中三乙醇胺/过氧化二异丙苯/苯乙烯体系基于过氧化物交联机理实现了聚氯乙烯的交联，聚氯乙烯交联后拉伸强度有一定提高，凝胶红外光谱分析证实了凝胶结构中含有乙醇胺的伯醇基团特征吸收和苯环的特征吸收，由凝胶结构分析，推断出交联反应的机理：聚氯乙烯在过氧化物和热作用下产生大分子自由基，苯乙烯在过氧化物和大分子自由基的作用下发生聚合和接枝反应，最终通过自由基之间的偶合产生交联；证实三乙醇胺可以吸收聚氯乙烯分解产生的HCl，提高了过氧化物的交联效率，消弱了HCl对聚氯乙烯降解的促进作用；推断三乙醇胺可以活化聚氯乙烯大分子并有可能使聚氯乙烯大分子自由基存在的时间得以延长，对聚氯乙烯大分子的作用使苯乙烯的接枝反应易于发生，从而提高了交联效率。

Fe-ion doped TiO2 was immobilized on solid support stubstrates-SiOa using sol-gel method. The photocatalytic efficiency of the TiO2 coating was compared with nanosize powders using the degradation of benzophenol in a aqueous solution as a standard test system, the photocatalytic efficiency was found to markedly increase.

采用溶胶凝胶法制备了硅胶附载的掺杂不同量铁离子的二氧化钛薄膜，用XRD，Raman，SEM的手段进行了表征，证明该条件下制备的二氧化钛为锐钛矿相，薄膜在硅胶表面的成膜效果较好，但有一定程度的龟裂，通过光催化实验发现催化效率与纳米粉相比有明显的提高。

The micro residual oil is mainly flaky,blocklike distribution composed of big-size drop in the low displacement efficiency; when the high displacement efficiency, the condition is the opposite.

在较低驱替效率下，微观剩余油主要是由片状、块状等连片分布的大液滴组成；而在较高驱替效率下，微观剩余油主要是由高度分散而孤立的小液滴组成。

Finally, SO2 removal efficiency empirical equation in the scope of experimental condition is gained from the result of uniform experiments by means of stepwise regression analysis.3. Under the basis of the experimental results in lab, crossflow packed-bed absorber for additional experiment is designed according to experience. The dimension of packed-bed absorber is fixed and flooding gas speed of absorber is checkouted. At the same time, calandria liquid distributor is designed. The efficiency of flue gas desulfurization by scrap iron is investigated in the additional equipment. Under th

为了更好的掌握脱硫工艺的过程规律，根据脱硫工艺涉及的Fe浓度范围，选用NaHso3作为反应物质，全面研究10一6M、阵扭l：IM范围内Fe液相催化氧化s反应动力学，将Fe浓度分为两个范围对实验结果加以讨论，确定HSO3一和Fe的反应级数，调查离子强度和温度对反应速率常数的影响；并结合研究者提出的自由基机理和反应历程，分析反应机理，解释动力学规律。

Capsulation efficiency of the process varies from 60% to 80% with a tendency of a high efficiency in small feed ratio of core to wall materials.

包裹效率在60％～80％，投料时囊芯对囊壁比例减少则包裹效率有增大的趋势。

The study of the photosynthetic and growth indices versus stress intensities shows that Caryopteris mongholica Bunge strengthens its adaptation to water stress with the reduction of net photosynthetic rate, transpiration rate and Maximum quantum efficiency of PSⅡphotochemistry, and the weakening of biomass accumulation and growth rate that are accompanied with a better water use efficiency and an increased Root/Shoot Ratio, and that the provenance of Inner Mongolia TUZUOQI is of the best physiological indices in water deficit.

通过测定不同水分梯度、不同种源的光合生理与生长指标表明：蒙古莸通过降低光合效率、蒸腾速率和最大光化学效率，减缓生长和生物量积累，提高水分利用效率和根冠比来适应水分胁迫。在水分胁迫下，蒙古莸光合能力的下降是引起其生长减缓的重要原因。从蒙古莸光合能力与生长综合考虑，内蒙古土默特左旗种源是在水分胁迫下表现最优良的种源。

The basic principle and hierarchical frame of FSR decision-making solving for DN is proposed creatively based on reliable knowledge. The categoricalness and high efficiency of decision-making solution set for FSR are ensured. The principle layer controls and realizes the search range and realization mode. The hierarchy and subarea search is performed, whose optimal rule is considered at the same time in order to ensure the solving rapidity. The decision-making realization layer forms the operation sequence of switch based on the trunk network set algorithm. The categoricalness and high efficiency of decision-making solution set for FSR is ensured.

创造性的提出了基于可靠性知识的配电网故障恢复决策解集构造的基本原理和实现的层次结构：确保恢复处理决策解集构造的完备性与高效性；原则层控制实现解集的搜索范围及实现模式，按兼顾优化原则的分层、分区搜索并确保求解的快速性；决策实现层在实现模式和相应树干网集运算的基础上，形成恢复处理决策开关操作序列，确保决策开关操作序列形成的高效率。

At last, the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles are studied by constructing the grey inhibition model of the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles.

通过对2—苯基丁腈缓蚀性能的理论预测和试验验证，认为利用某一类苯腈类化合物的缓蚀性能与分子结构关系，从理论上预测同类型苯腈类化合物的缓蚀性能是可能和合理的。灰色理论研究结果表明，苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀性能与分子结构参数的关系，可用GM（0，3）模型描述。

ABSTRACT Inhibition mechanism and the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles whose inhibition is caused by chemical adsorption and quaternary ammonium salts whose inhibition is caused by physical adsorption are mainly studied from microscope through quantum chemistry calculation, and the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles are studied by making use of model-constructing thought of grey theory in this paper.

本文主要通过量子化学计算，从微观角度研究了化学吸附型缓蚀剂苯腈类化合物和物理吸附型缓蚀剂季铵盐在盐酸溶液中对碳钢缓蚀的缓蚀机理和缓蚀性能与分子结构的关系；并运用灰色理论建模思想，研究了苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀性能与分子结构的关系。其中，通过量子化学计算，从微观角度研究物理吸附型缓蚀剂在盐酸溶液中对碳钢缓蚀的缓蚀机理和缓蚀性能与分子结构的关系，是在尝试着进行；而运用灰色理论建模思想，研究缓蚀剂缓蚀性能与分子结构的关系，是一项具有尝试性和开拓性的工作。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。