A high voltage and high frequency AC power source,which can output high voltage with adjusted waveforms,adjusted magnitude and adjusted frequency,is used to study the characteristics of DBD(Dielectric barrier discharge) in atmospheric air.
应用电压幅值和频率都可调的高频高压交流电源研究了大气压空气中同轴介质阻挡放电的特性;介绍了该介质阻挡放电装置的工作原理后研究了电源逆变器交流侧电路工作于固有谐振频率和1/3固有谐振频率下负载电压及其频率、放电电流、谐振电流随着逆变器直流侧电压变化的规律,比较了在逆变器直流侧电压相同下的负载电压和放电电流的特点。
upper atmosphere aerodynamics
高层大气空气动力学
Of, in, or caused by the air.
空气的属于空气的，在大气中的或由空气造成的
reentry aerodynamics
再入大气层空气动力学
air pollution; airborne pollution; air pollution
空气污染(大气污染)
The air pump draws in vast amounts of air
气泵吸进了大量的空气。
the tenuity of the upper atmosphere.
大气层的上部空气稀
The moisture in the air makes it humid today.
今天空气中水气大, 天气很潮湿。
Atmospheric port is now open permitting air to enter air break chamber.
大气端口现在开启，让空气进入空气断开腔。
air at a pressure greater than that of the atmosphere.
承受的压力比大气压力大的空气。
It had spread across the high valley.
冷空气穿过大峡谷。
Air hasn't much weight.
空气没有多大分量。
The spacecraft re-entered the atmosphere.
太空船重返大气层。
The air pollution has become a big problem.
空气污染已成为大问题。
The spaceship re-entered the atmosphere.
太空船重入大气层。
There is about one-fifth oxygen in the air,
空气里大约有五分之一的氧气，
Air moves across land and water in large air masses part.
空气以大气团的形式移过陆地和水面。
large tough non-rigid bag filled with gas or hot air.
充满气体或热空气的坚韧的大袋子。
expanded by (or as if by) gas or air.
被（或者好像被）气体或者空气胀大。