超声波频率

The above effects of ultrasound on the structure and catalytic properties were related to the frequency of used ultrasound, and the relationship followed the Gaussian distribution curve approximately. The maximum was located at 50 kHz ultrasound.

并且超声波对催化剂结构和催化性能的影响与超声波频率有关，不同频率的超声波对LaBO〓催化剂结构和性能影响的规律近似高斯分布曲线，以50kHz的超声波影响最大。

Effects of temperature,sound intensity,frequency,concentration of each component in the solution were discussed.

研究了超声波条件下工艺参数对Co-N i-B-Ce合金化学沉积速度的影响，讨论了温度、声强、超声波频率、镀液组成等对沉积速度的影响。

Pestrepeller automatically sweep the ultrasonic range of 24,000 Hz to 50,000 Hz, the adjustment knob allwa the rate of this sweep to be varied to prevent pests from developing an immunity to a pre-selected single sweep rate.

驱害器自动将超声波频率在24，000Hz到50，000Hz之间变换，调整按钮可以对这个频率范围进行调整以防止害虫对预设的单一频率范围产生免疫性。

The effects of reaction temperature,reaction time,ultrasound frequency,agitating velocity and HCl amount on the yield and purity of abietic acid were investigated by orthogonal experiment.

通过正交优化实验考察了反应温度、反应时间、超声波频率、搅拌转速、盐酸用量对枞酸单离收率和纯度的影响，确定最佳异构化反应条件为：超声频率47.2 kHz，反应温度55℃，盐酸用量0.06 mL盐酸。

Si ingots were studied under different ultrasonic frequencies,e g without degasser and ultrasonic,with degasser only,with degasser and ultrasonic under constraint cooling in the bottom of the ingot.

研究了不同超声波频率下熔体处理方法对Al-1.65%Si铸锭除气的影响，如：没有添加除气剂和超声波处理、只添加除气剂不进行超声波处理、铸锭底部强冷情况下既添加除气剂又进行超声波处理的情况。

The effects of the melt treatment methods on the degassing efficiency of ultrasonically refined Al-1.65%Si ingots were studied under different ultrasonic frequencies,e g without degasser and ultrasonic,with degasser only,with degasser and ultrasonic under constraint cooling in the bottom of the ingot.

研究了不同超声波频率下熔体处理方法对Al-1.65%Si铸锭除气的影响，如：没有添加除气剂和超声波处理、只添加除气剂不进行超声波处理、铸锭底部强冷情况下既添加除气剂又进行超声波处理的情况。

Results show the optimal conditions for the moringa seed oil extraction are as follows: using petroleum ether as solvent,the ratio of solvent to moringa seeds is 8∶1,extraction time 40 min and extracting twice with the aid of 28 kHz ultrasonic.At the conditions,the ...

结果显示，超声波辅助溶剂萃取辣木籽油的最佳条件为：溶剂石油醚，提取次数2次，提取时间40 min，超声波频率28 kHz，液料比8∶1，在此条件下，辣木籽的平均出油率为35.85%，提取率96%，表明超声波辅助溶剂萃取法是一种可用于萃取辣木籽油的适宜方法。

The ultrasound-assisted extraction process of apple seed oil was studied with orthogonally rotational combination design method.

本研究通过二次回归正交旋转试验，探讨了超声波辅助提取苹果籽油的工艺条件，得出了超声波辅助提取苹果籽油的数学模型，确定了最佳提取条件为：液料比为8，提取时间为35min，提取温度为35℃，超声波频率为60kHz。

Result proves that ultrasound frequency is higher in the same time, lethality rate increases with the increase of radialization time on the same frequency, at the same time, its physiological character changes.

试验结果表明，在相同的时间内，超声波频率越高对试验菌株的致死率越高；同一频率，超声波辐射时间增加也可使试验菌株的致死率增高，同时经过诱变处理后的菌株其生理生化特性也有变化

Instant tea effervescent tablet, a kind of solid drink prepared by granulating, drying, and tablet processing using instant tea , citric acid and NaHCO3 as main the raw materials was described in this paper.

本文探讨超声波技术在速溶茶提取工艺的应用，针对与超声波提取效果直接相关的几个主要因素(超声波频率、提取时间、温度、料液比、次数)做单因素实验，并得到最佳提取工艺参数。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。