因为牵引效果是与尺寸有关，所以这些装置在分类粒径不同的粒子这一方面也可能会有用处。
The effects are also quite size-dependent, so they might also be useful for sorting particles of different sizes.
他说象这种键字更正的工具在移动浏览器上也许会比在拥有完全尺寸键盘的计算机上更加的有用。
He noted that a typo-correcting tool like this may be even more useful in a mobile browser than it is on a computer with a full-size keyboard.
许多激光测量设备有显示最小和最大尺寸的设定；操作者必须只能沿着边缘点扫描。在测量对角线长度的时候这一点非常有用；
Many laser measuring devices have setting which shows minimum and maximum dimensions; the operator must merely scan the dot along an edge. This is helpful for taking diagonal measurements.
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