Since then , technologists have improved the effect , and it is now widely used to detect the tiny patches of magnetism that store information on high-density disk drives .
If occupy wall street is to leave a permanent mark , this is the sort of effort on which it must focus , rather than seizing patches of land .
如果“占领华尔街”运动想留下一个永久性的印记,那就是它必须关注于这种努力,而不是占领小块的地盘。
They applied temporary patches that would expire after this november 's presidential and congressional elections .
他们应用临时打补丁的方式坚持到11月份总统和国会大选结束。
However , instead of each pixel representing a colour , as in the image on a screen , these readings show all the different chemical compounds present in each of the thousands of tiny patches that together make up the sample .
The first inkling that putting charcoal in the ground might improve soil quality came over a century ago , when an explorer named herbert smith noticed that there were patches of unusually rich soils in the amazon rainforest in brazil .