Hitting a dust mote-sized particle would impart the same kinetic energy as slamming head on into a speeding freight train.
与尘埃级别的颗粒相撞，都可能得到与高速货车迎面相撞的能量。
2
The degradation kinetic model of head rice yield was developed using Artificial NeuralNetwork (ANN).
用人工神经网络研究了稻谷出米率的退化动力学模型。
3
Then the turbulence characteristics of the spur dike head and backflow region and the distributions law of flow and turbulence kinetic energy around spur dike are obtained in this paper.