查询词典 non attenuation wave

AIM: To label bone marrowderived stem cells with superparamagnetic iron oxid and to explore the image characteristics and signal attenuation rules of in vivo the magnetic resonance imaging of the labeled cells in rabbit liver.

目的：探讨超顺磁性氧化铁标记骨髓干细胞的方法和标记细胞在肝脏内的磁共振活体成像特点和衰减规律。

The heavier the ablation is, the faster attenuation the ablating acoustic spectrum has.

烧蚀程度越大，与烧蚀相关的烧蚀声峰衰减越强烈，烧蚀声峰的上升时间约为400 μs。

All the compressed centrums depicted even lower attenuation with papery cortical bone and notable sparse trabeculae;Where as,the fracture line was not found in all compressed centrums.

对X线诊断、临床证实的30例绝经后脊柱原发性骨质疏松患者椎体压缩的CT表现进行回顾性分析。

All the compressed centrums depicted even lower attenuation with papery cortical bone and notable sparse trabeculae;Where as,the fracture line was not found in all compressed centrums.

结果：81个椎体表现为压缩变形，其中凹陷形48个，楔形27个，扁平形5个，椎体内骨折线不明显，骨密度均匀减低，骨皮质变薄，骨小梁稀疏。

can be drawn by analyzing the experiment data:(1) With modeling indoor garbage column leaching test, the results indicated that the dynamic change of the pollution components of leachate display complex fluctuate attenuation; During the course of initial stages and middle stages, the garbage was decompounded quickly and gave out the quality concentration of pollutant maximally to the environments and the harm was also the most serious.

通过对试验数据进行整理分析，得出了如下结论：(1)通过室内垃圾柱淋滤模拟试验，结果表明淋滤液中污染组分的动态变化呈复杂的波动衰减；垃圾在填埋过程中，初期和中期降解速度很快，向环境中释放的污染物质量浓度最大，对环境造成的危害也最为严重。

Calculations of diffracted attenuation are important for acoustic design of railway noise barriers.

铁路声屏障绕射衰减计算是声屏障声学设计的重要内容。

The combination of the effects of signal attenuation and impedance discontinuities on a communications link is called insertion loss.

结合在通讯链结上的讯号衰减和阻抗不连续的效应被称为插入损失。

In this dissertation, the theories and practical achievements of this field were summarized, ruls about dissemination and attenuation in soils of vibration are discoursed.

本文对该领域近年来的研究成果进行了综述，论述了振动在土中的传播及衰减规律。

The causative agent of the disease is an Corona virus, infectious bronchitis virus IBV）, classified as Corona .Present vaccines for IB are all modified live viruses derived either by sequential passage embrocated chicken eggs. As Immunogenicity of IBV is usually correlated with its virulence, almost all modified live IB vaccines remained insufficient attenuation and have shown a variety of side effects including spread of vaccine virus to no vaccinates, occurrence of long term "carrier" birds, and increasing virulence during in vivo passage.

目前国内外预防本病所用的疫苗大多数是弱毒疫苗，但现用弱毒疫苗都存在以下缺点：（1）与IBV强毒一样，其弱毒疫苗株也能引起潜伏感染，潜伏感染的鸡将终生带毒；（2）疫苗病毒可以由接种鸡传染给非接种鸡，在鸡群之间传播过程中毒力会返强，从而成为新的感染源；（3）传染性支气管炎病毒极易发生变异，且易成为病毒重组的供体和受体，给使用IB传统疫苗预防和根除IB带来极大的困难。

Patchy ground-glass attenuation with thickening of bronchovascular markings were the main findings in high resolusion computed tomography of all three cases.Small areas of consolidation in two cases and traction bronchiectasis in one were found while there was no honeycombing.

胸部高分辨CT均以片状磨玻璃样变为主要表现，伴有支气管血管纹理增厚，2例有小片状实变影，1例有牵引性支气管扩张，未见蜂窝样变。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。