Researchers in Japan have made fertile mammalian sperm in a culture dish, a feat long thought to be impossible.
日本的研究者在培养皿中培育出了有繁殖能力的哺乳动物的精子,这在长久以来都被认为是不可能实现的。
属类:英汉句库-article.yeeyan.org
Shaanxi is a north-westernl province of the People’s Republic of China, which has an area of 75,600 sq mi (195,800 sq km). It includes portions of the Loess Plateau on the middle reaches of the Yellow River as well as the Qinling Mountains across the southern part of the province.By regular Hanyu Pinyin rules, both Shaanxi and the neighboring province of Shanxi should be spelled “Shanxi” .To make the difference clear without tonal marks, the spelling “Shaanxi” was contrived (following the romani...
Researchers in Japan have made fertile mammalian sperm in a culture dish, a feat long thought to be impossible.
日本的研究者在培养皿中培育出了有繁殖能力的哺乳动物的精子,这在长久以来都被认为是不可能实现的。
属类:英汉句库-article.yeeyan.org
Shaanxi is a north-westernl province of the People’s Republic of China, which has an area of 75,600 sq mi (195,800 sq km). It includes portions of the Loess Plateau on the middle reaches of the Yellow River as well as the Qinling Mountains across the southern part of the province.By regular Hanyu Pinyin rules, both Shaanxi and the neighboring province of Shanxi should be spelled “Shanxi” .To make the difference clear without tonal marks, the spelling “Shaanxi” was contrived (following the romani...