超声

OBJECTIVE: To approach whether intravascular ultrasound can be used to assess vascular changes due to drug intervention.

目的：探讨血管内超声能否用于药物干预所致血管变化的评估。

Objective:To identify the characteristic features of unstable atherosclerotic plaques with intravascular ultrasound.

目的 探讨冠状动脉不稳定斑块的血管内超声的特点。

Objective To develop a porcine restenosis model of coronary artery, and to evaluate it by intravascular ultrasound.

目的 建立猪冠状动脉再狭窄模型，并用血管内超声进行评价。

They include: 1. A supersonic beam of NO molecule mixed with Ar atom is ionized by VUV synchrotron radiation from Hefei Light Source at National Synchrotron Radiation Laboratory.

它们包括： 1。首次利用国家同步辐射实验室合肥光源的真空紫外同步辐射，使NO分子和Ar原子混合物的超声分子束发生光电离，测量了Ar，NO和异类团簇Ar·NO的光电离效率谱。

Objective To investigate an effective method for pupil dilation to facilitate phacoemulcification surgery in cataractous eyes with pupillary membrane secondary to old iridocyclitis, post anti-glaucoma surgery, ocular injury, and so on.

目的探讨一种简单有效的方法使陈旧性虹膜睫状体炎、抗青光眼术後、眼外伤及因虹膜炎症、纤维素膜覆盖致瞳孔无法散大的白内障患者瞳孔扩大，使白内障超声乳化手术得以顺利进行。

METHODS: Twentythree cases(28 eyes) of cataract with small pupil and serious synechia(23 eyes with obsolete iridocyclitis;5 eyes with eye injury) were operated by cutting pupillary collar continuously, then were performed phacoemulsification and foldable intraocular lens implantation.

23例28眼小瞳孔白内障，其中23眼为陈旧性虹膜睫状体炎，5眼为眼外伤术后，术中用维纳斯剪沿瞳孔缘连续环形剪除部分瞳孔区虹膜，后常规进行白内障超声乳化及折叠人工晶状体手术。

SH guided wave dispersion characteristics and wave structure for free surface isotropic elastic pipe circumferential waveguide were calculated and analyzed to guide pipeline inspection,and these characteristics were compared with those of the plate SH guided wave.

为指导基于超声导波的管道无损检测，计算并分析水平切变（shear horizontal，SH）导波在具有自由内表面、外表面的弹性各向同性管道周向波导中传播的频散和波结构特性，将这些特性与平板SH导波的对应特性进行对比分析。

NOTE: For Ultrasonic and Eddy Current methods, this requirement may be relaxed to Jaeger No. 2 or equivalent, provided it is approved and documented by the employer.

注：对于超声检测和涡流检测，在雇主书面批准的情况下，近距离视力可以放宽到2号或等效类型和尺寸的字母。

BACKGROUND: Ultrasound is increasingly used to facilitate rightinternal jugular vein cannulation in children.

背景：超声越来越多地用于帮助儿童患者的右颈内静脉导管的置入。

The ultrasound assisted extractionof total flavonoids and total triterpenoids from the leaves of Diospyros kaki is studied in this paper.

研究了超声辅助提取柿叶中总黄酮和总三萜的工艺。

I think he's learned how to approach hitters....

Johhny Damon说，『他已是最好的了，再没有人能够比他做的更好，我想他的球技已经完全成熟了，而且他也已经学会了如何去对付和压迫各种打击者。。。。。。

In effect, an 18 foot King Cobra could actually look down onto the average human being.

际上，一个18尺眼镜蛇王其实可以俯视到的平均人。