She lit a cigarette with quick, jerky movement.
她用急促的动作点着了香烟。
Stick-slip flow is a jerky movement of compacted grains with velocity of particles at the walls slightly lower than in the rod like core.
粘附滑移流动是一种密集颗粒的急跳式的运动，在壁面处，颗粒的速度稍低于呈杆状的中心的速度。
Stick-slip flow is a jerky movement of compacted grains with velocity of particles at the walls slightly lower than in the rod like core.
粘附滑移流动是一种密集颗粒的急跳式的运动，在壁面处，颗粒的速度稍低于呈杆状的中心的速度。
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