格里尔通过转换这些状态来实现向前和向后移动物体。
Switching between these states allows Grier to move objects back and forth.
主要波跟声波的特征相同，当地面被加压或减压时强迫向前和向后移动。
Primary waves are identical in character to sound waves. The ground is forced to move forwards and backwards as it is compressed and decompressed.
这些产品使用现有的眼睛肌肉去改变晶体的形状，在眼睛聚焦的过程中使它向前和向后移动。
These products use the existing eye muscles to change the shape of the lens and move it backwards and forwards in the eye during focusing.
编辑功能意味着您可以在当前显示的命令行中向前和向后移动，以做出更改或纠正输入错误。
The editing functionality means that you can go forward and backward through the command line currently displayed to make changes and correct typos.
如演示视频所示(请参阅参考资料)，这些三指手势用于在浏览历史记录时向前和向后移动。
As shown in the demo video (see Resources), these three-finger gestures are used to move forward and backward in the browsing history.
但是对于台式机应用程序，如果可以修改内容，并且某些可视化组件(如tdbgrid)可在数据集中向前和向后移动，那将会很好。
However, for desktop applications, it would be nice if you could modify the contents, and if some of the visual components (like the TDBGrid) actually moved forward and backwards through a dataset.
更广泛的命令(例如按单词向前和向后移动)可以通过readline库来控制，该库在缺省情况下同时支持vi和emacs绑定。
More extensive commands, such as going backward and forward by words, are controlled by the Readline library that supports both vi and emacs bindings by default.
乐观主义可能起始于最卓绝的人类天份：精神的时间旅行——在头脑中沿时间和空间向前向后移动的能力。
Optimism starts with what may be the most extraordinary of human talents: mental time travel, the ability to move back and forth through time and space in one's mind.
两类游标都将启用滚动，滚动将使您可以在游标内相对和绝对地向前移动和向后移动。
The two cursors both enable scrolling, which lets you move around within a cursor — forward and reverse, in both a relative and an absolute sense.
两类游标都将启用滚动，滚动将使您可以在游标内相对和绝对地向前移动和向后移动。
The two cursors both enable scrolling, which lets you move around within a cursor — forward and reverse, in both a relative and an absolute sense.
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