Reverse jet action distance, can use long big filter bag, make full use of space, cover an area of an area small.

反吹风作用距离大，可采用长滤袋，充分利用空间，占地面积小。

youdao

To date, much of what I see in the Social Analytics space tends to cover only a small part of the overall picture.

FORBES: Big Data Analytics and Social Business: An E-Book

Plenty of space for the people smugglers to bring the migrants down here by cover of night, launch them off in those small wooden boats and head them towards the Italian island of Lampedusa, or sometimes to Malta.

BBC: Last Updated: Wednesday, 16 January 2008, 12:19 GMT