order of magnitude

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Most software projects have requirements backlogs that are too big -- often by an order of magnitude.
大多数软件项目都有庞大的需求积压——通常按照数量级进行排列。
But it is interesting. Let's just, for an order of magnitude say what happens for ground state electron in atomic hydrogen?
但行星模型其实挺有趣的，按照重要的先后顺序，我们来猜想一下,氢原子中的基态电子会发生些什么？
We could optimize, but the application would be at least an order of magnitude slower. Memory use would also skyrocket, as so many classes are created.
我们可以做优化，但应用程序的速度将会变慢至少一个数量级，内存的使用也会扶摇直上，因为有这么多的类被创建。

But it is interesting. Let's just, for an order of magnitude say what happens for ground state electron in atomic hydrogen?
但行星模型其实挺有趣的，按照重要的先后顺序，我们来猜想一下,氢原子中的基态电子会发生些什么？
麻省理工公开课 - 固态化学导论课程节选
And so in theory after just 2 or 3 steps you were in order of magnitude farther along in this counting process than I would be because I'd still be on person literally 3 or 4.
因此从理论上说,经过这样短短的两三个步骤,你们就有了分级次序，比我数数快多了,因为我才数到第三四个人。
哈佛公开课 - 计算机科学课程节选
And how about order of magnitude? Let's see.
那么什么是大小的程度。
麻省理工公开课 - 固态化学导论课程节选

On the basis of original intent, the IMF is failing by a nosebleed order of magnitude.
FORBES: "You Americans Are Funny" -- You Start an IMF

数量级
In international trend, accuracy and stabilization improve very quickly by one order of magnitude every 6-8 years.
从国际发展的趋势上看，频率标准的准确度和稳定度提高得非常快，几乎是每隔6～8年就提高一个数量级。
数量序