In dark pools he zeros in on the market plumbing that has allowed quants to jump in and out of stocks in microseconds ( millionths of a second). 而在《暗池交易》中,他则瞄准了市场上的跳水现象,在这个过程中,宽客可以在几微秒(百万分之一秒)内进行股票买卖。
Fitted with a fuel cell about the size of a penny, the bionic bugs were able to generate over 20 microwatts ( 20 millionths of a watt) during a two-week trial. 放入了一个一便士大小的能量池,这些甲虫在2周实验期内产生了20微瓦(一瓦特的百万分之二十)。
Pollen on Geranium Stigma: The size of the grains is measured in millionths of a meter, but the romantic journeys of pollen are epic. 天竺葵柱头上的花粉,花粉颗粒的尺寸以百万分之一米计量,然而其浪漫的旅程简直是史诗般的。
The hormone was detected at three millionths of a gram in every kilogram of milk, while the highest dose of niflumic acid was less than one millionth of a gram per kilogram of milk. 每千克牛奶中检出的这种雌性激素的含量为3微克,相比之下每千克牛奶中检出的尼氟酸的最高含量还不到1微克。
It is very easy to shield against UV, though; just a few millionths of a meter of opaque material is enough to protect bacteria. 不过,紫外光极易遮挡,只需要几片10-4公分厚的不透光材质,即足以让细菌免于受到伤害。
For a small black hole, say just a little heavier than twice the sun's mass,( 2) the time to fall to the center is exceedingly short, being about twenty millionths of a second. 就一个很小的黑洞来说,比如仅仅比太阳重两倍,落向黑洞中心的时间极其短,大约是百万分之二十秒。
RESULTS Total incidence cases 16 cases, the average annual incidence rate of 14 millionths, CFRS 100.0%. 结果总发病病例16例,年平均发病率为1.40/10万,病死率为100.0%。