超声的

Furthermore, the new ultrasonic vibration honing equipment designed according to the local resonance theory is manufactured and the second-level amplification phenomenon of individual sub-system of"flexible pole and oilstone base"in system is discovered for the first time.

粗、细磨粒超声延性域珩磨工程陶瓷材料的试验研究 a通过粗磨粒珩磨氧化锆工程陶瓷试验首次得出：普通珩磨延性切削范围小于1.5μm，同样条件下超声珩磨，延性切削范围可得到9μm，即超声珩磨的延性域切深几乎是普通珩磨的6倍。

Mean scatterer spacing is an important parameter for describing the biological tissues miciostractuial features and tissues ultrasonic scattering characteristics.

生物组织散射元平均间距是描述生物组织微观结构特性和生物组织超声散射特性的重要参数，生物组织的超声散射特性研究是生物医学超声学中最基本最重要的课题之一。

The third aspect studied the stability of the semifinished and purified pigment under different circumstances.

超声法提取枣皮红色素的最佳工艺参数为：超声时间25min，超声功率300W，提取剂的浓度0.9%，料液比1：25，提取级数三级，枣皮红色素的提取率达94.08%。

Abstract］ Objective To analyze the B-ultrasonography features of pelvic lymphocyst,and to evaluate the diagnosis value.Methods Ultrasonographic manifestations of 21 cases of pelvic lymphocysts proved by CT scan or surgery and pathology were studied retrospectively.

目的 分析盆腔淋巴囊肿的超声表现，评价超声对盆腔淋巴囊肿的诊断价值方法盆腔恶性肿瘤术后行常规 B超检查，收集经手术病理或CT扫描证实盆腔淋巴囊肿的21例病例，回顾性分析其超声表现。

Methods］Fifty-two wrists from 40 patients with CTS confirmed by surgery and 32 wrists from 20 healthy individuals underwent sonographic examination of the thickness of transverse carpal ligaments at the level of pisiform bone and the hook of the hamate bone in transverse plane by the same operator.

［目的］探讨超声测量腕横韧带厚度在腕管综合征临床诊断中的应用价值［方法］52侧(40例)腕管综合征患者的手腕 CTS组，均经手术证实，术均行超声检查，32侧(20例)正常人手腕为正常对照组，由同人进行超声检查，测量豌豆骨水平和钩骨钩水平腕横韧带的厚度。

Ultrasonic extraction method of valeriana officinalis Linn natural perfume was studied The basic parameters of extraction technology were obtained.

通过超声萃取宽叶缬草天然香料的试验研究，得出了基本工艺参数，探讨了超声萃取过程中的工作机理，试验结果表明：超声萃取天然香料具有较显著的效果，值得进一步研究和开发。

Academic analyze and plentiful experiments are done to design the ultrasonic saddle of ultrasonic suspended gyroscope, power supply of ultrasonic, gyroscope rotor, theory analyze and design have been done in magnetic field circumrotating part and angle acquisition system.

通过理论分析和大量的实验，设计并制作了超声陀螺仪的超声鞍部分、超声激励电源部分和陀螺球，对磁场加转部分和角度读取系统进行了原理分析及设计。

At present,there are three methods ofimproving definition of type-B ultrasonic image: adopting transducer array;usingtechnique of dynamic focalizing and image enhancement.

目前，提高B 型超声图像的清晰度(主要是提高其横向分辨率)主要采用超声换能器阵列，利用动态聚焦技术和对获得的超声图像进行图像增强的处理方法。

Ultrasonic power supply is the power and control center of ultrasonic peening. Its performance directly affects the quality of ultrasonic peening.

超声电源是进行超声冲击的能量供应和控制核心，因此它的性能好坏直接影响超声处理的质量。

The intensity of the ultrasonic wave will increase when the ultrasonic wave is focused by the sound lens in rock stratum.

然而 ，这种方法要受到两个因素的制约：一是增大超声换能器的功率，必然要增大超声换能器的尺寸，这在本身尺寸就很小的油井中是有一定限度的；二是当超声换能器辐射出的超声波的强度过大时，在超声换能器的周围要发生强烈的空化现象，产生大量的气泡，这些气泡将对超声波产生强烈的散射作用，导致超声波的衰减，反而降低超声波在岩层中的传播距离[1] 。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。