New York possessed thirty different companies, each operating an independent system.

纽约拥有 30 家不同的公司， 每家公司都运行着一个独立的系统。

We need multiple independent systems. If one fails then the others can override it.

我们需要多个独立的系统。如果一个失败，那么其他人可以覆盖它。

The researchers from Zhejiang University developed an independent and controllable photosynthetic system derived from a device in young spinach leaves, according to the study published in the journal Nature this month.

据本月发表在《自然》杂志上的科研成果论文，浙江大学科研团队利用菠菜嫩叶中的装置开发了一种独立、可控的光合系统。

He did seek security for government funds by suggesting the removal of deposits from private banks and the establishment of an independent treasury system, with government depositaries for public funds, in several leading cities.

他确实通过建议在几个主要城市取消私人银行的存款和建立独立的国库系统，为公共资金设立政府存管机构，从而为政府资金寻求保障。