Yet today's mobile networks are not sufficiently reliable for anything other than non-critical uses, according to a study in 2005 from the University of Massachusetts in Amherst.
但2005年爱莫斯特麻省理工学院的一份学术报告指出，目前的移动网络只能提供非决定性用途。
2
Plants and microorganisms filter wastewater so it can be reused to flush toilets and for other non-potable USES.
植物和微生物对废水进行过滤，以便重复使用于冲洗厕所和其它非饮用途。
3
There are also a number of non-traditional uses for crawlers, such as archiving content or generating statistics.