Second, developing the sound transmission loss measuring system.
第二，声学材料隔声量测量系统的构建及测量。
The invention provides a ship high transmission loss base structure.
本发明提供的是一种舰船高传递损失基座结构。
The condenser performance parameters and the optical fiber transmission loss are computed.
计算了聚光器的性能参数和光纤传输损耗。
The transmission loss properties of CPW on different substrates are investigated systematically.
研究了不同衬底上共面波导（CPW）的损耗特性。
Because of taking the sound-solid interaction into account, there are more peak value in transmission loss curve.
计算结果表明，由于隔声罩内声腔与结构振动的相互作用，考虑声固耦合后，隔声罩透射损失曲线峰值较多。
Refractions which transit the zone will be delayed because of low velocity and attenuated because of transmission loss.
穿过此区的折射因低速而有延迟，又由于透射损失而有衰减。
Active noise control technology has recently been used to increase the sound transmission loss of double wall structures.
噪声主动控制技术目前已用增加双隔板结构对声音进行衰减。
In the power system of reactive power balance layer, to reduce the flow path, reduce the reactive power transmission loss.
电力系统中无功的分层平衡，有利于减少输电路径上无功的流动，降低电网传输损耗。
The author attempts to derive the transmission loss formula for a rather complicated power system having multiple load points.
作者企图从动力系统最基本的功率传送方程出发，来推导具有多个负荷中心的复杂动力系统的网损计算公式。
Then, experimental data of noise transmission loss for both acoustics treated and untreated aircraft sidewall panels are given.
给出了机身侧壁壁板试件经过蜂窝刚度处理前后的隔声量试验结果。
Therefore, proper application of transmission loss allocation methods in Direct-Purchase User has important and practical values.
因此，在大用户直购电中合理运用网损分摊方法有着重要的实用价值。
Through testing on muffler on a certain motor, the paper evaluates the static performance of sound transmission loss of the muffler.
通过对某种发动机使用的消声器进行测试，对消声器的静态传声损失性能作出评价。
The 3-D finite element method is used to obtain the four-pole parameters of a muffler which are in turn used to calculate the transmission loss.
为考察消声器的性能，先用三维有限元法求出消声器两端的四端子参数，然后再根据四端子参数求出消声器的传递损失。
The method does provide a useful alternative where the measurements for the samples of small dimensions with high transmission loss are required.
在需要测量具有高隔声量的小试件时，这个方法更加有用。
A comparison between the wave and ray models shows that the ray model gives an approximation of the transmission loss in an acoustic vector field.
经过与波动理论的比较，说明该模型仅是矢量声场传播损失的简单近似。
The four-pole parameters of muffler can be obtained using BEM, therefore the acoustic characteristics such as transmission loss can be predicted .
由边界元法计算出消声器的四极参数，从而预测传递损失等消声量。
People have paid more attention to the graded-index optical waveguides formed by ion-exchanged for its easy fabrication and low transmission loss.
目前，已有多种成熟的工艺技术，特别是离子交换技术，可以制备低损耗的渐变型折射率波导。
Compared with traditional allocation of transmission loss, the method provides correct economic signal in decreasing the whole loss of the network.
与传统的网损分摊方法相比，有利于总网损降低，具有较强的经济导向性。
The position of minimum values on the sound transmission loss curve varies with the changes made on plate thickness and the moment of inertia of stiffeners.
板厚或肋骨惯性矩的变化会引起结构传声损失曲线上隔声低谷位置的变化；
This paper is concerned with two aspects of transmission services cost of electricity market, transmission loss allocation and transmission cost allocation.
本文着重从两个方面对电力市场环境下的输电服务费用问题进行了深入探讨：输电网损分摊和输电费用分配。
The predicted transmission loss of perforated tube silencers using the finite element method and experimental results are compared and showed good agreement.
使用有限元法计算穿孔管消声器的传递损失，并与实验测量结果进行了比较，二者吻合良好。
In this paper, a model of statistical energy analysis is used to study sound transmission loss of the aircraft cabin, and predict the sound field in the cabin.
文章建立了飞机壁板隔声的统计能量分析模型，研究了外部声场激励和振动激励通过飞机壁板的隔声量，预测了飞机舱室内的声场分布。
This paper calculated tropospheric scatter communications transmission loss, and calculated in the presence of a sound, the changes about the communications loss.
本文计算了对流层散射通信的传输损耗，计算出了在有声波存在条件下，声波对通信损耗的增量。
The T104 test, used for two-way transmission loss measurements, far-to-near noise measurements and near-to-far noise checks is normally used in testing toll trunks.
T104测试线。用于双向传输损耗测量，由远至近噪声测量以及通常用于测试长途中继线的由远至近的噪声。
The distribution problem of transmission loss in electric power market can be solved by the method of computing transmission loss based on marginal loss sensitivity.
电力市场中的输电损耗分配问题可采用基于边际损耗灵敏度的损耗分配方法来解决。
Provided is a flexible wiring board, which reduces an impedance mismatch even if three-dimensionally folded, so that it can realize a reduction in a transmission loss.
本发明的柔性布线板提供具有尽管立体地弯折也可实现降低阻抗失配并降低传输损失的布线构造的柔性布线板。
Using the instrument for the transmission loss of single mode of winding birefringence optical fiber, the spectrogram of loss and the graph of mode density are obtained.
利用检测单模双折射光纤弯曲传输损耗装置测绘了光纤的弯曲损耗图及光纤弯曲传输模式图。
The acoustic analysis model for an automotive exhaust muffler is built, and the transmission loss of exhaust muffler is measured by test and also simulated by using both FEM and BEM.
建立某汽车排气消声器的声学分析模型，采用有限元法和边界元法对排气消声器的传递损失进行了仿真分析和试验测试。
The trend is motivated by the economy of scale due to the higher transmission capacity, more efficient use of right-of-way, lower transmission loss, and reduced environmental impact.
这种趋势是由于更大输电容量，更有效利用线路走廊，更低线路损耗的规模经济性以及降低对环境影响所促使。
The trend is motivated by the economy of scale due to the higher transmission capacity, more efficient use of right-of-way, lower transmission loss, and reduced environmental impact.
这种趋势是由于更大输电容量，更有效利用线路走廊，更低线路损耗的规模经济性以及降低对环境影响所促使。
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