除产生上下运动外，面波还会发生侧向移动。
In addition to the up-and-down motion generated, surface waves also have a side-to-side motion.
身体没有侧向移动。
本实用新型涉及一种便于汽车侧向移动的辅助装置。
The utility model relates to an auxiliary device which is convenient for an automobile to move laterally.
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