transient drag meaning in Chinese

瞬变阻力
瞬时阻力

The paper introduces a measurement method of two - phase flow parameters based on digital image processing techniques through processing image of an experiment study of the transient drag property on the high - temperature particles falling into the cold liquid pool
文章以处理高温颗粒沉降冷池实验图像为例，介绍基于数字图像识别技术的气液两相流参数检测方法。