The only truly secure system is one that is powered off, cast in a block of concrete and sealed in a lead-lined room with armed guards.

真正安全的系统只能关机断电，放到一个混凝土浇注的建筑物中的一个密闭的房间中，并配备警力进行守卫。

youdao

Migrate existing technology, including Command Destruct Systems and the Cast Glance stabilized photo-optical system, into the NP-3C aircraft;

将现存技术，包括指挥破坏系统和投掷扫视稳定光照片系统，移植到NP-3C飞机上；

youdao

So, if an extra planet did get cast out of the solar system, at least it has plenty of company.

所以，如果这个特别的行星的确被抛出了太阳系，至少他有很多的同伴。

youdao

The couple did extensive renovations on the space, resulting in a new kitchen, baseboard cast-iron heating system and an oversize spa tub in the master bathroom.

WSJ: Room for Love and Laughter

The BCSB findings cast serious doubts on whether the system will work.

BBC: Poor struggle to open bank accounts

The HSE investigation focussed on the possibility of a faulty gas distribution system and found the cast iron mains pipe was sunk in sandy-gravelly soil that was classified as "very aggressive" to "moderately corrosive".

BBC: Shrewsbury gas explosion 'no-one's fault' HSE concludes