超声波的

And the influences of glutin and sodium dodecyl sulfate as dispersant on the cobalt powder grain are investigate.

在333K、pH=3.5～4.5、频率为40kHz的超声波条件下通过改变电流密度和电解液浓度，得到超声电解法制备超细钴金属粉体粒度的变化规律。

Ultrasonic technology is an effective method for extracting flavonoids from Glycyrrhiza, which showed strong antibiotic activity.

结论超声波技术是提取甘草黄酮的高效方法，甘草具有较强的抗菌活性。

Gallbladder endoscopicmucosalresectionor open cholecystectomy were applied in 28 cases developed with chronic atrophic cholecystitis and cholecystolithiasis.No hemorrhoea resulted from venae hepaticae intermediae on gallbladder bed injury were occured in all the cases.

术前常规彩色多普勒超声波检查，明确胆囊床肝中静脉及属枝位置关系，对于肝中静脉与胆囊床相贴的病例，采用紧靠胆囊壁的浆肌层剥离，或采用胆囊粘膜切除，或直接开腹手术切除，可以避免因损伤胆囊床肝中静脉而导致大出血。

Recently, our study group demonstrated the usefulness of ultrasonographicguidance in ilioinguinal/iliohypogastric nerve blocks in children.

最近我们的研究组已经证实了在小儿髂腹股沟/髂腹下神经阻滞中超声波引导的有效性。

The experimental results indicated that the frost layer grew very slowly with the effect of ultrasound,and the frost layer composed by "frost line" was more inerratic.

结果表明，超声波对平板表面霜层的生长具有显著的抑制作用。

It is also desirable to have a reasonably fine grain in order to obtain ultrasonic inspectability.

为了获得良好的超声波探伤性能，也希望得到合适的细晶粒。

On the aspect of ultrasonic wave Transmit and Receive, we use two probes to realize the switching between transmitting and receiving mode; we also adopted a transmitted scheme based on intermissive multi-pulse, which develops the Time Difference with Interpolation, uses digital filter to adjust the waveform, and calculates the Time Delay with Correlation Arithmetic.

在超声波发射和接收方面，系统采用了两个探头进行发射和接收的切换，并采用了一种间隙式多脉冲发射方案；接收并采集数据后利用软件插值来提高时间分辨率，再用数字滤波来调整波形，最后用相关算法进行数据的相关运算，从而计算出时延得到流速。

E. coli cells harboring the recombinant plasmid was cultured with Laria broth medium and induced with isopropyl β-D-thiogalactopyranoside and detected from supernatant and precipitate of culture lysates by using SDS-PAGE.

将重组菌培养并经IPTG诱导后用超声波裂解菌体，取上清和沉淀同时作SDS-PAGE电泳后显示，上清中没有热休克蛋白A的表达，在沉淀中有热休克蛋白A的表达。

Using design of L9 (3^4), the extraction conditions of total flavonoids from Lithocarpus polystachyus Rehd. in Huaihua were optimized by ethanol solution extraction assisted with ultrasonic, and the variety trends of total flavonoids content were investigated with different natural storage time, different gathering seasons, differrent Lithocarpus polystachyus Rehd.

以怀化产多穗柯为原料，采取乙醇为溶剂超声波辅助提取，以L9(3^4)正交试验方法优化总黄酮提取工艺，然后在该工艺条件下对自然存放时间不同、采摘季节不同、不同叶的多穗柯原料进行总黄酮含量的动态变化考察。

Total flavanone of Humunus Lupulus L. was extracted with ultrasonic wave technique for the first time, and the method was simple, convenient and no pollution. It can be used for the extraction of the total flavanone of Humunus Lupulus L.

结论］首次运用超声波技术从啤酒花中提取出总黄酮，提取纯度较高，方法简单、易操作，无任何污染，是提取啤酒花中黄酮类物质的有效、便捷的方法。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。