Initially the system was offline for a number of days.

最初系统有几天没有联网。

《柯林斯英汉双解大词典》

Their numerical system, derived from the Babylonians, was based on multiples of the number six.

他们的数制是袭用巴比伦人的，以数字6的倍数为基准。

《柯林斯英汉双解大词典》

As they began to settle, grow plants and herd animals, the need for a sophisticated number system became paramount.

当他们开始定居、种植作物和饲养动物时，他们对复杂数字系统的需求变大。

youdao

Before last week's announcement, the total number of so-called exoplanets outside our solar system was just over five hundred.

VOA: special.2011.02.09

Latte, which is a homogeneous system, has a very, very large number of components to it All the components that make up the milk.

拿铁咖啡是个均匀系统，但它有非常非常多的组分,牛奶中的所有组分咖啡中的所有组分。

麻省理工公开课 - 热力学与动力学课程节选

I have shown that by taking Avogadro's number of individual ion pairs and putting them all together in a line, the system's energy became more negative.

我推导出了,从每一个离子对中抽出阿伏加德罗常数,再把它们放在一起在一列中，这个系统的能量就变得更负。

麻省理工公开课 - 固态化学导论课程节选

Nevertheless, said Erfani-Ghadimi, the problem doesn't lie in South Africa's laws so much as in the ability of the justice system to cope with the number of inmates in the system.

CNN: What's life like in a South African prison?

One calls for a quota system limiting the number of contribution-free workers a business can employ.

ECONOMIST: German jobs

Under such a system, the number of persons receiving retirement payments would be substantially less.

FORBES: Fixing The Nagging Problem Of Social Security -- Part 2