Nasa's shuttle Discovery is getting ready to blast off into space one last time, after technicians reattached a main separation nut that fell off on Friday.

在技术人员们将上周五掉落的一个主要的分离螺帽重新安装好之后，NASA(美国航空航天局)的发现号航天飞机正准备最后一次飞向太空。

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At present, the main way of hydrocyclone desanding is static hydrocyclone, which is a main separation method of solid-fluid or fluid-fluid in oilfields at home and abroad.

对于旋流除砂的方法目前应用的主要是静态水力旋流器，也是目前国内外各大油田主要使用的一种固-液或液-液分离方法。

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If the regulators truly believe that the main element of their structural reforms, the separation of equity research from investment banking, will remove Wall Street's inherent conflicts of interest, they are mistaken.

ECONOMIST: The Wall Street settlement

Lindsey Green felt a different kind of separation anxiety last November as she visited the main room of Grand Central three times in a three-week span.

WSJ: Grand Central 100-Year Anniversary: A Century of Connections