selectivity造句

The synthesis of vinyltriethoxysilane with high selectivity

But the selectivity calculated in this way is not as accurate as selectivity calculated using data distribution.

Bragg structure is usually a kind of periodic structure with continuous corrugation phase, which has excellent mode selectivity and frequency selectivity properties.

A hydrocracking catalyst with high selectivity to middle distillates was developed.

The first bucket of gold can make her life full of selectivity.

It is characterized by good frequency selectivity, low insertion loss and high attenuation of specified frequency.

Appropriate solvent could increase the permeation selectivity of the imprinted membrane for the template.

The catalyst had high activity and high selectivity in esterification of phthalic anhydride with isoamyl alcohol.

The female insect has a clear selectivity on the location and development stage of the fruit for them to oviposit.

Under these conditions, an excellent yield of butadiene approximately 80% and selectivity about 90% can be obtained.

Potential applications were expected of MIBK-MEK solvents in the process of microcrystalline wax production due to their good selectivity.

It has chromatographic performance of high column efficiency, good inertia and thermal stability, very high selectivity on analyzing dimethylbenzene isomer.

For modified hectorite catalysts the selectivity of by-products could be controlled around 45%, which make a big advancement from solid catalysts synthesized by SiO2.

It's a well packaged unit that is based on the proven Dry colorimetry detector, which provides stability, sensitivity, selectivity and equimolar sulfur response.

The result shows that the conclusion of the three models is basically the same: China's open-end funds lack the market timing ability but possess certain selectivity ability.

The oviposition choice test in the laboratory showed that both SSB and PSB had little difference in oviposition selectivity to the two kinds of rice.

Hydrogen peroxide decreases the pulp yield slightly and has the good selectivity to eliminate the chromophores. So it's an important bleaching agent in the high-brightness Mechanical pulp production.

Due to the frequency selectivity and high insertion loss of SAW device, the input must be high pulse whose spectrum width can cover the center frequency of SAW tap delay line.

This information can then be included as part of the optimizer decision during costing for selectivity and cardinality estimates for qualified queries which do not need to reference the view directly.

Since the work of Hubel and Wiesel, it is generally accepted that visual orientation and direction selectivity are achieved by processes in the visual cortex in the higher mammals.

The tests show that the surfactants have good behaviour in floatation, and have advantages, such as good collective power, high selectivity and saving oil , so they have good prospect.

对于优化器不能选择最佳查询执行计划的例外情况，DB 2已经增加了诸如selectivity子句和优化指南之类的特*。