1·In this paper, the configuration and principle of acrawl structure used by mine saving robot is discussed.
本文介绍了一种沿半埋雷体表面爬行的捞雷机器人爬行机构的结构和原理。
2·This time, however, the rush to the poles is more of acrawl, which means we could be headed toward a very weak solar maximum in2013—and it may delay or even prevent the start of the next solar cycle.
然而，这一次，向两极移动的冕流却慢腾腾的，它意味着我们可能将在2013年经历一个非常弱的太阳活动峰值——这也许会延迟甚至阻止下个太阳活动周期的开始。