波特兰市的俄勒冈国家灵长类研究中心的米塔李波夫（Shoukhrat Mitalipov）星期三对记者说，新试验使用的方法效能非常低下。
The process used in the new experiment is "quite inefficient, " Shoukhrat Mitalipov of the Oregon National Primate Research Center in Portland told reporters Wednesday.
这是1893年的一张照片，奥特·李林塔尔乘着他的载人飞行器翱翔在人群上空。
Otto Lilienthal soars above a crowd in one of his manned gliders in an 1893 photograph.
“不管你在实验室里为自己设定的时间是什么，它都将成为标准，”李·欧塔说，“所以，如果你想要人们在晚上和周末工作，那么你将不得不在这些时间出现。”
"Whatever time in the lab that you set for yourself, that will tend to be the standard," says Liotta. "so, if you want people to work evenings and weekends, then you will have to show up then also."
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