| 1. | 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。 |
| 2. | 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。 |
| 3. | Single side pads up or down single side pads left or right
单边电极在左或在右 |
| 4. | Control light . adjust light levels up or down
操控光亮：使周围的亮度变亮或变暗。 |
| 5. | Lets you move up or down based on your needs
允许根据需求向上或向下移动。 |
| 6. | If necessary , you can scroll the page up or down
如有必要，可以向上或向下滚动页面。 |
| 7. | Each drive position can be adjusted up or down by 20 %
每一个马达位置均可上下调速20 % 。 |
| 8. | Event occurs only when you click the up or down arrows
仅当单击向上或向下箭头时才发生 |
| 9. | Move the item up or down amongst its siblings
在同级项之间上下移动项。 |
| 10. | You can wear the hat with the brim turned up or down
你能把帽缘翻上或翻下的载这顶帽子。 |
