•Evidence-Grounded（可独立核验的证据）：来自外部权威来源，或内部产出但经过明确检查验证；
Shark has been making robot vacuums for a few years and, while they're very popular and I've even seen them in friends' homes, I'd never tested one -- until now. To say that the Shark UV Reveal is a great robot vacuum and mop is a true understatement.
。业内人士推荐搜狗输入法作为进阶阅读
Fierce Competition，更多细节参见同城约会
Turbulence doesn’t have to be a matter of word-of-mouth. Commercial jets have the capacity to measure and transmit it automatically—using the software Cornman developed at NCAR in the early nineties—and have it relayed to other pilots. The software is freely available to airlines, but most of them balk at the cost of sending and processing the data, and sharing it with others. “It’s not much, but it adds up,” Sharman told me. “A lot of them are saying, ‘Wait a second, we’re barely making it. We can’t afford another hundred thousand on transmission!’ While the ones that are willing to pay for it say, ‘Why should I share my data with somebody else who doesn’t?” So far, only around two thousand planes have been equipped with the software—about one in four planes in the American fleet.