up or down meaning in English
电梯的上下按钮
Examples
- Changing the concentration of the solution simply shifts the (ha) and (a) curves up or down .
改变溶液浓度，仅需上下移动HA和A曲线位置。 - The airplane must be guided, or steered, so that it will not only go left or right, but also up or down .
飞机必须被制导，即被驾驶，使它不仅可向左或向右而且也可向上或向下飞行。 - Single side pads up or down single side pads left or right
单边电极在左或在右 - Control light . adjust light levels up or down
操控光亮：使周围的亮度变亮或变暗。 - Lets you move up or down based on your needs
允许根据需求向上或向下移动。