Jeff: Not really. Sometimes I type for five or six hours without stopping.
杰夫：没有。有时候我打字连打五六个小时不停。
This paper presents a new type of nanopositioning stage which has five degree of freedom;
提出一种新型的五自由度精密定位平台的工作原理及其设计方法。
This paper presents a new type of nanopositioning stage which has five degree of freedom;
提出一种新型的五自由度精密定位平台的工作原理及其设计方法。
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