如何在秒差距实现下标操作符？
目前哈勃常数最被广泛认可的值是每秒每百万秒差距72千米，这个值是由哈勃空间望远镜测出的。
The most widely accepted value for the Hubble constant right now is 72 kilometers per second per megaparsec, obtained by the Hubble Space Telescope.
他和他的同事仔细观测了另一个系外行星：WASP12b，一个距地球267秒差距的气体巨星，它于2009年被发现。
He and his colleagues have taken a close look at another exoplanet: WASP 12b, a gas giant 267 parsecs from Earth, which was discovered in 2009.
再来你必须说服整个世界，你的确侦测到像这样的物质，在太阳系外行星的宿主恒星大气中，在离这里100秒差距的地方。
And then you have to convince the whole world that you have actually detected something like this in the atmosphere of an extrasolar planet host star somewhere in 100 parsec away from here.
他以不到一秒钟的差距输了比赛。
多个这样的差距可能会导致事务的执行时间超过120秒，从而导致事务超时。
Multiple gaps like this could cause a transaction to last longer than 120 seconds, resulting in a transaction timeout.
但是经过上述实验后，两个钟表的时间差距不到十亿分之一秒，所以需要用两个非常精准的钟表。
However, after the experiment described above the difference in time between the two clocks was less than a billionth of a second, which is why very accurate clocks were needed.
这表明进入executeQuery方法的条目与从executequery方法退出的条目之间存在14秒的差距。
This shows a 14-second gap between the entry into the executeQuery method and the exit from the executeQuery method.
如果要执行更复杂的查询，或者要连续执行多个查询，那么执行时间的差距就不是次秒级的，而是以秒甚至分钟来计算的。
If more complex queries are executed, or if several queries are executed in sequence, the difference in the execution time is not just sub-seconds but seconds or even minutes.
通常一级方程式赛车五十圈左右下来，这些秒差就是胜负的差距。
These, aggregated over a typical Formula 1 race's 50 or so laps, can make the difference between winning and losing.
2002年冬奥会的1500米比赛上，杨扬以不到0.1秒的差距与奖牌失之交臂。
In 2002 Olympics, Yang Yang missed a medal in the 1500m by less than a tenth of a second.
巴瑞·塞诺用同一圈内用0.056秒的差距，再次夺回杆位。
But Samin took back the pole with a time of 0.056 second difference in the same lap.
巴瑞·塞诺用同一圈内用0.056秒的差距，再次夺回杆位。
But Samin took back the pole with a time of 0.056 second difference in the same lap.
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