该蠕动泵是 由几个滚轮滚动连续不断地压迫弹性软管，将流体按滚轮运动的方向输送。
In the peristaltic pump, a plurality of rollers roll to press an elastic hose continuously, so that liquid is transported in accordance with the movement direction of the rollers.
修正鼠标滚轮侦听器后，您将可以不用按钮和滚动窗格。
When the mouse wheel listener bug is fixed, you'll be able to remove the use of the button and scroll pane.
JScrollPane组件甚至随预注册的侦听器一起提供，所以当这个组件获得焦点且用户移动鼠标滚轮时窗格将会滚动。
The JScrollPane component even comes with a pre-registered listener, so the pane will scroll when it has focus and the user moves the wheel.
从Flash播放器取回PgUp和pgdn键来滚动整个页面，或添加cnee——record——mouse选项重新支持滚轮。
Reclaim your PgUp and PgDn keys from the Flash player to scroll the entire page, or add the cnee — record — mouse option to re-enable your scroll wheel.
通过点击鼠标按键，滚动滚轮来导航和聚焦窗口和框架，或者完全的通过键盘来操作。
Windows and frames are navigated and focused on any mouse button click, including rolling the wheel, or alternatively driven entirely by the keyboard.
这是一个中级水平的教程和看起来可能是棘手的，但为什么不试试呢？让我们滚动我们的鼠标滚轮。
This is an intermediate level tutorial and some may seem to be tricky, but why not have a try? Let's get the ball rolling.
滚轮的妙处在于使用者无须费力和难用的滚动条打交道（参见图19-1）。
The fantastic thing about the scroll wheel is it allows users to avoid dealing with the challenges of interacting with scrollbars (see Figure 19-1).
滚轮和按键类似，较松的滚轮在滚动时，会感到。
Like the key, the loose wheel will not go straight to theright place when it works.
当用户滚动鼠标滚轮并遇到滚轮的下一个刻度时，框架就调用这个成员函数。
The framework calls this member function as a user rotates the mouse wheel and encounters the wheel's next notch.
使用方法：手握把手，将腿放在滚轮上前后滚动。
Use Method: Hold the handle with hands, put the leg on the rolling wheel and move back and forth.
使用方法：手握把手，将腿放在滚轮上前后滚动。
Use Method: Hold the handle with hands, put the leg on the rolling wheel and move back and forth.
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