超声波的

Shadi major equipment may be walking a wire Cutting Machine; Taiwan-Green high-precision surface grinder; significant number of high-precision milling, precision and outside circular grinding, NC Fast thread cutting machines, ultrasonic composite die polishing machine, and other precision integrity Mechanical processing equipment, and to introduce the most advanced domestic and foreign 5/10000 accuracy of the Japanese optical projector, and high-precision tool microscope and a high degree of precision measurement orbit testing equipment such as the high-precision product quality assurance.

主要设备有沙迪可慢走丝线切割机；台湾宇青高精密平面磨床；高精度数显铣，精密内外圆磨，数控快走丝线割机，超声波复合模具抛光机等各类完整精密的机械加工设备，并引进国内外最先进的精度达万分之五的日本光学投影仪，以及高精度工具显微镜，高度测量轨等精度检测设备保证产品的高精度品质。

We carry on studying and designing of drainage pipe imaging testing system comparatively lately. Therefore, it is epoch-making and meaningful that I study the drainage pipe ultrasonic imaging testing system for our country"s online ultrasonic imaging testing system. And it is very much meaningful that we improve our country"s drainage pipe level.

由于我们国家对排水管道成像检测的研究起步比较晚，所以本课题研究的排水管道超声波成像检测系统对我们国家排水管道在线成像检测具有非常重要的意义，同时对提高我国的排水管道检测水平，也具有十分重要的意义。

ML dichlorovs(30 mg/L) is oxidized by ultrasonic in 100 mL beakers. When power is 200 W,600 W and 800 W,the removal is low,for the largest removal is less than 20% at the treatment of 60 min, while the removal is 48% when power is 1000 W. On the mean while, cost raises a lot. Consequently, treatment of dichlorovs by ultrasonic is worthless.

超声波法在频率20 kHz，声强为0.3 W/cm2，0.9 W/cm2和1.4 W/cm2（对应的超声功率分别为200 W，600 W和800 W）的条件下处理60 min时的敌敌畏的最大去除率都不超过20％；声强为1.7 W/cm2（1000 W）处理60 min时去除率达48％，但此时处理成本较大，不具实际应用价值。

At last, the paper thoroughly researchs the deflection of the ultrasonic wave measuring, and detailedly introduces the cause of the deflection, at the same time,, bings up some measurement to avoid the deflection. Additionally, the paper provide the experimental result and experimental data.

最后本文还给出了实验结果和实验数据，并对超声波测距的误差作了较为深入的研究，对误差的产生作了较为详细的介绍并提出一些避免误差的措施。

Only the glow from the occasional plasma coil provided an eerie blue light, and the shadows were full of the floating Huragok that whispered to one another in ultrasonic chitters.

只有偶尔发光的等离子线圈提供一点恐怖的蓝光，阴暗中充满了悬浮着的胡拉告克对话的低沉超声波啾啾声。

Studies on the effect of eluting time,temperature and ultrasonic on elution rate are carried out and X-ray fluorescence are used in analysis.

针对硫酸溶液可以有效洗脱树脂上的氰化物和锌，但不能洗脱铜的工艺问题，选择氨水溶液对酸洗后201×7树脂上的铜进行解吸；试验研究了解吸过程的时间、温度以及超声波作用等条件对解吸率的影响，并进行了X射线荧光分析。

MECC Hydraulic has finished more than 100 sets of piping project as AGC, mill, forge press, blast furnace, grate cooler and extrusion press (cleanness reached to NAS5). Circular filtrated equipments (2500L/min), CCS1 contamination detector and SK2010 hydraulic system data recorder can supply high quality piping project for user.

我们拥有成熟的现场管路安装经验和液压系统循环清洗的专业技能；有德国进口的液压系统检测仪和清洁度在线检测仪、超声波探伤仪和总流量每分钟可达3000l/m的高压清洗循环设备所以我们可以给用户提供达到国际水平的液压系统现场管路安装和循环清洗工作。

After compared, the balanced GOLD code has the keen-edged self-correlation characteristic and lesser mutual correlation function; in addition, the sequence numbers of lesser mutual correlation function is more than any other code.

通过比较，发现平衡GOLD码具有尖锐的自相关特性和较小的互相关函数，并且具有较小互相关函数的序列数目多。因而采用平衡GOLD码对发射端的超声波信号进行调制发射。

Objective To investigate bone nutritional status of neonates and their mothers as well as the correlation between them by estimating the concentrations of 25-D3, calcium and phosphorus in maternal blood and cord blood at birth, and by measuring the bone speed of sound of neonates and their mothers with quantitative ultrasound within 3 days after birth. Methods The concentrations of 25-D3, calcium and phosphorus in the serum were estimated both from 32 pregnant women who had a term delivery and from the umbilical cord at birth.

摘 要：目的通过对产妇及其新生儿在分娩当天进行血25-D3、血钙和血磷浓度的测定以及在产后3 d内采用骨定量超声仪对母儿进行骨超声波速度(speed of sound，SOS)的测量来评价母儿的骨营养状况和两者的相关性。

The design and manufacturing processes of ultrasonic TR probes for manual and automatic inspection of the wheel rim s were introduced.

介绍了用于车轮轮辋超声波检测用的手动和自动探伤TR探头的设计和制造工艺，制造出了灵敏度高、盲区小、信噪比高的TR探头，在现场轮辋探伤中取得了良好的结果。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。