第一个纯粹的玻色-爱因斯坦凝聚态是在1995年使用一大群铷原子在科罗拉多(美国西部的州)所建立起来的,它的温度低于170毫微开尔文。
The first pure Bose-Einstein condensate was created in Colorado in 1995 using a cloud of rubidium atoms cooled to less than 170 nanokelvin.
Wealth Management Exchange的库玻说,这样一来,财务顾问可以根据我的指示做出买进决定,却不能卷走我的钱。
This way, 'an adviser can make purchase decisions based upon my instruction, but they can't run away with my money,' says Wealth Management Exchange's Mr. Cooper.
1991年,菲律宾的品纳士玻火山爆发不到一年,上层大气中的自然硫酸盐微粒就使全球气温降低了0.5摄氏度。
Natural sulphate particles in the upper atmosphere lowered global temperatures by 0.5 degrees Celsius in less than a year following the eruption of Mount Pinatubo in the Philippines in 1991.
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