And the accumulator is a passive system that just operates automatically based on a significant loss of pressure in the primary system.

蓄电池是一个被动的系统，只会在主系统出现了重大的，压力损失的情况下才会自动运行。

youdao

Global Positioning system (GPS) aided passive imaging navigation system is presented in this paper.

本文介绍的是一种GPS辅助的被动成像导航系统。

youdao

And explains the application of the active defense system and the passive defense system in network security.

阐述了主动防御系统与被动防御系统在网络安全中的应用。

youdao

But TV receivers that use what is called a passive glasses system are costly.

VOA: special.2010.01.26

This type of passive safety system may sound simple.

CNN: Today/Tomorrow - Helping nuclear plants keep their cool

This approach is described as a "passive" system because once initial conditions are set inside the flask, a continuing presence of helium and good insulation is all that is required to maintain those conditions.

BBC: Herschel space telescope finishes mission

It's a sort of passive system.

NPR: The Marketplace Report: U.K.'s Car Tracking System