The group's first attempts in 1999 weren't all that speedy, but by 2014 they had a molecular motor that spun at 12 million revolutions per second.

该研究组在1999年的首次尝试中并未达到高速运转，但到2014年，他们已经拥有了以每秒1200万次速度旋转的分子发动机。

Gerard and I want to add our congratulations to Arthur for his remarkable invention of laser tweezers that can trap living cells and wind up molecular motors.

热拉尔和我想对阿瑟的卓越发明，即激光镊子，表示热烈的祝贺，它的作用是捕获活细胞，并使分子马达运转起来。

The group’s first attempts in 1999 weren’t all that speedy, but by 2014 they had a molecular motor that spun at 12 million revolutions per second.

该小组在 1999 年的首次尝试并没有那么快，但到 2014 年，他们拥有了一个以每秒 1200 万转的速度旋转的分子马达。