propagation conditions

The propagation of stress waves in solids can be considered as a part of the field of acoustics or ultrasonics depending on the conditions.

应力波在固体中的传播，根据其条件可视为声场或超声场的一部分。

Analyzing and Modeling for the Digital Signal Multipath Propagation Time Delay Spread Suffered from Huge Buildings in a City in Mobile Communication System The value of loss and time-delay is given by simulation calculating in different conditions.

高层建筑对脉冲多径时延展宽影响分析与建模根据仿真计算得到了不同紫外光通信条件下的损耗、时延和脉冲展宽。

Diseases spread by insects are encouraged when climatic conditions propagation of the vector.

当气候条件适于媒介昆虫繁殖时,由昆虫传播的疾病即行蔓延.

In this thesis, considering the random nature of the whole set of data, unified a-N incremental polynomial fitting method is proposed under the same test conditions to provide a scientific basis for the study of the influence of different stress ratio on the fatigue crack propagation.

本论文采用考虑整套数据的随机特性的a-N数据拟合方法，提出统一a-N递增多项式拟合法，为研究不同应力比R下的疲劳断裂可靠性提供科学的依据。

Under conditions of easterly flow, therefore, or very large westerly flow no vertical propagation will occur.

所以在东向气流或很大的西向气流的情况下, 将不发生垂直传播.

High-strength alloy steels can experience rapid crack propagation from stress corrosion under certain loading conditions.

高强度合金钢在一定的载荷下承受应力腐蚀会造成裂纹的快速扩展.

A fault detection system for a liquid propellant rocket engine was proposed in the realtime conditions using the back propagation ( BP) neural network.

应用BP神经网络，提出了一种液体火箭发动机故障实时检测系统。

The external cause includes unfitting culture conditions, strain aging, unsuitable preservation and infection virus of asexuality propagation.

外因主要包括培养条件不适宜、菌种老化、菌种保藏不当和菌株无性繁殖体感染病毒。

The propagation, transfer and termination reaction rate constants have been calculated for different polymerization conditions and for catalysts of various compositions.

计算了在不同聚合条件和各种催化剂组成时的链增长、对烷基铝链转移及链终止反应的速度常数。

The performance of a Multiple Input Multiple Output ( MIMO) system in ideal and non-ideal propagation conditions, which is established using Space Time Coding and Space Division Multiplexing techniques and operates in a wireless indoor environment in the 17 GHz frequency band is discussed.

讨论了MIMO系统在理想和非理想传输条件下的性能，系统工作在无线室内环境17GHz频宽内。