anechoic
Noise is measured in an anechoic room.
噪音值是在无音室中的测量值。
A NSA model of impact anechoic chamber ispresented herein theoretically.
文章首先经过推导和计算,得出了一套计算紧缩型暗室的归一化场地衰减(NSA)理论值模型。
The shape of cavity should be optimized in the design of anechoic coating.
在覆盖层设计中，空腔的形状应有一个优化的过程。
The internal structure appeared to be cystoid and anechoic in 15 cases.
15例囊肿内为无回声区,囊壁均匀、光滑,后方回声增强,5例内部为弱回声,囊壁均匀光滑。
A high density MDF cabinet with walls of varying thickness is heavily damped with bitumen and lined with anechoic grade foam.
高密度的MDF箱体四周配以不同厚度的高阻尼沥青和内衬消声泡沫。
Model Helicopter Rotor Aerodynamics and Acoustics As Measured in Tow Anechoic Wind Tunnels.
在两个无回声风洞中测量时模型直升机旋翼空气动力学与声学。
It"s better than primary dissipative muffler in anechoic quality and aerodynamic quality.
此消声器与原消声器相比具有更好的消声性能和空气动力性能。
The sound source is placed in a reverberation room, and the receiving room is a small anechoic box.
这种方法,声源放在一个混响室内,而接收室是一个小的消声箱。
Three lesions were anechoic with well demarcated two-layer wall and one was echogenic.
4例作了超声检查，其中3例显示双层囊壁，囊内为无回声液性暗区。
B-Ultrasonography revealed a complex light mass with low echo or anechoic area in the 11 patients.
超下表现为低或无回声光团为主的混合性光团。
The same anechoic lier image (probable the choledochal cyst) was obsered again (Figures 2B and 3).
肝内又看到同样的无回声图像（可能是先天性胆总管囊肿）（图2B和3）。
The paper measures the electromagnetic leakages of computer in GTEM cell and EMC microwave anechoic chamber.
针对计算机及其外设的电磁泄漏问题,分别在GTEM室和EMC室进行了相关测量。
B-Ultrasonography revealed a complex light mass with low echo or anechoic area ...
术后可以利用B超早期诊断。加强产时监护、提高产科质量是预防的根本措施。
EMC lab has a 10m anechoic chamber, which is up to international advanced level.
电磁兼容(EMC)实验室建有国际先进水平的标准10米法电波暗室。
Maintain test and measurement area, including anechoic chamber, rooftop measurement area, and listening rooms.
维护所有测试配置和听音设备及电缆。
It is the important reference for the evaluation of fully anechoic chamber performances.
为评估全电波暗室的性能提供重要技术依据。
So the acoustic parameters must be known if the anechoic tile is demanded to be designed almost perfectly.
针对越来越高的要求,要设计好符合要求的消声瓦,需要了解其制作材料在不同频率下的声学参数。
The same anechoic liver image (probable the choledochal cyst) was observed again (Figures 2B and 3).
肝内又看到同样的无回声图像（可能是先天性胆总管囊肿）（图2B和3）。
EM shielded room, anechoic chamber, EMC testing software, wire netting, antenna conducting fiber shield tape.
电磁屏蔽室、电波暗室EMC测试软件金属丝网、天线导电纤维屏蔽胶带；
CSI provide professional building services for all sizes of anechoic chamber and shielding room, we also provide testing system verification service.
CSI提供制造各类型尺寸的专业电波暗室和屏蔽室以及测试系统的校验服务。
Note：Serial number， Array it according to operation finished time； Percent＝Number of anechoic canine/ Number of chordectomy canine in this group.
注：编号，按完成手术的时间顺序排列；百分率＝吠音消失犬数量/本组声带切除术犬数量。
The results show that the influences of various backings on the acoustic characteristics of anechoic coating are obviously different.
结果表明，不同背衬对吸声覆盖层吸声性能的影响具有明显不同的特性。
Results Envelope of typical superficial lipoma is not clear, their internal echogenicity were anechoic and accompany with hyperechoic strip.
结果典型浅表脂肪瘤包膜多不清或隐约可见,内部呈相对低回声伴有稍强小条索。
With the experiment toward organic glass, the affection of measurement results which came from opening end and anechoic end was contrasted.
通过对有机玻璃的测试，比较了透射管开口末端和吸声末端对测量结果的影响；
In calculation of reflected level of quiet zone in anechoic chamber, a spot emission model is often used to simulate antennas characteristic.
在微波暗室静区反射电平计算时常采用点源发射模型模拟天线的特性,它适用于低频段或方向性差的天线。
Construction level of shielding chamber and installation method of absorbing material can directly influence performance of anechoic chamber.
屏蔽室的建造水平及吸波材料的安装方式直接影响着电波暗室的性能。
With the reduction of operation frequency, the height of thepyramidal absorber in the microwave anechoic chamber will increase correspondingly.
随着使用频率的降低,微波暗室角锥吸收体的高度也相应增加。
SMD Components, Total EMC Solution and Anechoic Chamber, Power Supply, LIP Battery Cells, Core, Transformer, Inverter, etc.
SMD部件，EMC整体解决方案，电波暗室，电源，锂电子电池电芯，磁芯，变压器，转换器等
The typical sonographic presentation of primary malignant lymphoma of thyroid gland is a hypoechoic or anechoic, solitary or confluent lesion.
摘要甲状腺恶性淋巴瘤典型之超音波表现为低或无回音之独立或融合性病灶，若侵及颈部淋巴结，亦有相似之表徵。
Therefore, there are only few proper test sits in shielded (anechoic) chambers, since the required facilities are very expensive.
因此, 只有很少的完全地测试在保护 (无回声的) 室中坐, 因为必需的设备非常贵。
Equipped with DAAS, LMS and other test system, the standard rooms and listen Anechoic room, can help customers product development and debugging.
产品广泛用于舞台音响，汽车音响，家庭影院音响，公共广播音响等。
The results of experiments done in anechoic chamber have shown that DAA has effective performances which just provide the fundation and feasibility of practical use.
在消声室的实验结果表明它具有较好的声吸收性能,为其应用作了初步的可行性研究。
Test Results of high-range resolution images from a phased army radar in microwave anechoic mom are given, which demonstrate the validity of the analysis.
并给出在微波暗室里进行的相控阵试验雷达工作在宽带角电扫描情况下成像试验的部分结果，验证了理论分析的正确性。
The article elucidates the mechanism and charactenistic of noise when air compressor disperse, harness adopt by anechoic maze of chamber, achieve good results.
文章阐述了空压机排空放散噪声产生机理及特点,采用迷宫室式消声器治理后,取得了明显效果。
The patient was examined at 26 weeks, at which time the anechoic cyst was found to be located in the right upper abdomen and in front of the inferior ena caa (Figure 1).
26周检查发现囊性暗区位于右上腹，下腔静脉前方（图1）。
The material is used in EMC room, anechoic chamber, RF imitate cell, microwave dark box, pretender material for anti-radar and defense baffle from absorber etc.
它们可安装于“EMC”电波暗室，射频仿真室、天线测试室、微波暗箱、防伪装雷达、吸波屏风等处，同时对电子系统工程进行施工安装。具有较高的使用价值和长远的发展前景。
In the measurement of small sample in an acoustic cylindrical tube, measurement data with rigid backing should be taken as the standard of the performance of an anechoic coating.
在实验室小样品声管测试中，以较厚的钢柱作为背衬的测试数据来衡量吸声覆盖层性能更为合适，且易于实现。
A wall reflection model is established to meet accuracy requirements of radar tests,and it can be used to compute the maximum reflectance of a single wall in an anechoic chamber.
建立了墙面反射模型,用于根据雷达精度试验的要求计算微波暗室单个墙面的最大反射系数。
Anechoic chamber is the primary test site of electromagnetic radiation measurement, also the important facility for antenna and wave propagation research.
电波暗室是辐射电磁场的主要测量场地，也是研究天线与电波传播特性的重要试验设施。
The quiet zone performance not only characterizes the performance of radio anechoic chamber,but also is a key factor for designing the anechoic chamber.
静区性能是电波暗室综合性能的体现,也是暗室设计的关键。
At the same time, the Company in the electromagnetic anechoic chamber, shielded room design, construction, applications also have a great deal of technology and experience.
同时，本公司在电磁波暗室、屏蔽房的设计、建造、应用领域上也有极丰富的技术及经验。
A car installed with different types of tire is put on the chassis dynamometer in an anechoic test chamber for measuring the in-car noise under coasting condition.
摘要对某轿车换装不同型号轮胎，在消声室转鼓上进行滑行工况下的车内噪声测试。
A 20-year-old patient, graida 2, para 1, carrying a single pregnancy at 22 weeks was referred for second-leel sonography for an abdominal cystic anechoic structure.
患者20岁，孕2，产1，孕单胎22周时行第二水平的超声检查发现腹部囊性暗区。
The results of systematic debugging in anechoic pool, maritime experiment and theoretic analysis, show that the system can improve capability of naval vessels' anti-mine warfare.
经过消声水池系统联调、海上实验和理论分析，取得了预期的效果，表明系统能在一定程度上提高舰船反水雷作战能力。
Results:Two-dimensional ultrasound show 26 case of renal angiomyolipoma can be divided into four types: high echo type,low echo type,anechoic type,mixted echo type.
结果:二维超声显示26例肾血管平滑肌脂肪瘤,分四型,高回声型,低回声型,无回声型,混合回声型,20个肿瘤彩色多普勒血流图其内可显示血流信号,6个肿瘤其内未显示血流信号。
Results Most contours of the masses were somewhat regular,and the margins were clear.There were three inside echopatterns:anechoic,hypoechoic and heterogeneous.
结果超声表现肿块大部分形态尚规则,边界清楚,内部回声复杂多样,表现为三种:无回声,低回声,回声呈不均质多样性。
The anechoic room is the appointed Lab by Zhejiang provincial testing institute of electronic products, and also the only one that meet the all electric-acoustic technical parameters in Zhejiang.
消声室是浙江省电子产品检验所指定的电声实验室,是浙江省目前唯一测试电声产品声学指标的全消声室。
Non infected seromas after surgery are usually anechoic collections. Fluid collections complicated by infection or hemorrhage appear more complex, with ariable degrees of internal echoes, layering, and septa (Figure 2 ).
术后未感染的血清肿常为无回声的积液，并发于感染或出血的积液其表现比较复杂，内部回声程度、分层和分隔常不同（图2）。
A simulation model is developed to estimate acoustic field in the anechoic tank, taking into account secondary reflection, variation of absorption coefficient with respect to the incidence angle, and effects of directional sources.
利用虚源方法建立了消声水池声场计算的声场模型,该模型考虑了二次反射、吸声系数随入射角变化、有指向性声源等多种情况。 利用声场模型对水池的声场进行了计算,分别考虑了点声源、吸声系数随入射角变化、二次反射和指向性声源等情况。
The reason of noise in air-condition system was discussed, and the anechoic method and principles were described. The effect by noise-eliminating method in air-condition system design was introduced.
论述了噪声产生的原因以及对其防治的基本原理及方法，并介绍了在实际空调系统设计安装过程中采取消声、吸声、隔音等综合措施后所收到的效果。