倒槽 meaning in English

back trough
inverted trough
surge chamber

The results show that the heavy storm was caused by the interaction between a tropical cyclone trough that landed in guangdong province and a weak cool front in the westerlies
结果表明，本次大暴雨是由在广东登陆的热带气旋倒槽北伸与西风带弱冷空气相结合的产物。
The results show that the weather process occurs because of typhoon trough with cold air , deep upper trough ; the southeast low - jet by typhoon transported large water vapour and great energy of instability to heavy rainfaill area ; cold air , lower convergence and upper divergence by deep upper trough lead to development of the east - ocean low pressure and occurd strong wind
分析结果表明：这次天气过程是由台风倒槽和冷空气及深厚的高空槽共同作用引起的；台风环流引起的东南低空急流为暴雨区输送了大量的水汽和不稳定能量；冷空气的侵入加上深厚的高空槽引起的低空辐合、中高层辐散，促使了东海低压的剧烈发展，产生了猛烈的大风。