Theoretical Derivation of the Atmospheric Diffusion Model of a Continuous Volume Source in Conditions of Light Air and Calm.;
小风和静风状态下连续体源大气扩散模式的理论推导
Theoretical derivation of TSP atmospheric diffusion model in conditions of light air and calm;
小风和静风状态下TSP大气扩散模式的理论推导
Based on the analysis of the observation results of wind speeds, this paper recommends a low-speed wind model to substitute the conventional zero speed wind model for prediction of the pollution of exhausted gases from high elevation point source.
本文在分析风速观测的基础上，提出了用微风模式代替静风模式预测高架点源废气排放在静风条件下的污染预测。
The equivalent axial stiffness,the dynamic behavior,the aerostatic behavior and aerodynamic stability of the bridge are analyzed by 3D nonlinear analysis.
为了探讨碳纤维复合材料在大跨径斜拉桥中应用的可能性,以拉索等轴向刚度为原则,拟定了一座主跨为500 m的应用碳纤维索的大跨径斜拉桥,并运用三维非线性计算理论进行了动力特性、静风特性和空气动力稳定性分析。
With increasing span length of suspension bridges,the cable s diameter and also the wind load acting on it,the static wind action and the spatial non-uniformity of wind speed increase consequently,which may have an unnegligible influence on the aerodynamic stability of long-span suspension bridges.
随着悬索桥跨径的增大,缆索直径以及作用在其上的风荷载、静风效应以及风速空间分布的非均匀性都将随之增强,对大跨径悬索桥的空气动力稳定性将可能带来不容忽视的影响。
Atmosphere Environmental Capacity Study in Contitions of Ligh Air and Calm;
小风和静风条件下大气环境容量研究
There was no wind and everything was quiet.
没有风，一片寂静。
After the storm it was calm.
暴风雨过后风平浪静。
The wind went down and the sea became quite calm.
风势减弱，海面十分平静。
The wind has gone down .
风已经平静下来了。
mine static head
矿井通风系统静压头
The rain stopped, the thunder ceased and the wind went eerily silent.
雷雨停了，风也静了。
It was the lull before the storm.
这是暴风雨前的寂静。
It was the calm that preceded the storm.
那是暴风雨前的平静。
To render motionless for lack of wind.
使静止由于无风而不动
cyclone type electrostatic spraying apparatus
旋风式静电喷漆装置
Weather that is preceded by a storm is generally calm.
暴风后的天气大都平静。
After the storm, quietness reigned.
风暴过后是一片寂静。
The sea looks calm and smooth.
海洋看上去风平浪静。
Nothing happened in the night.
那天晚上倒是风平浪静。
The sea looked calm and smooth.
海面看起来风平浪静。
The sky is blue, and the sea is calm.
天空碧兰, 海上风平浪静。
At the beginning of the journey, the sea was asleep.
刚起程时海上风平浪静。