The need for variation means the system cannot see things that are stationary. When the signal is temporarily blocked by a moving object such as a person, however, it shows up loud and clear.

系统不能探测到静止的物品, 而当信号暂时被一个移动的物品(比如一个人)阻挡, 强度变量会响亮而清晰.

youdao

The user can also make it read the message out loud in digitized prose, print the text, or send it in email or via another electronic messaging system — intendiX is Bluetooth-ready.

使用者还可以让它用数字化的文字大声的读出来，还可以打印文本，或者用电子邮件或用其他的电子信息传输系统把信息传输出去，因为intendix已经配备有蓝牙了。

youdao

A loud TV or radio can be a better deterrent than the best alarm system.

把电视或者收音机开大声，会比最好的警报系统更具有震慑作用。

youdao

Somebody say it real loud. Yes, the system is working on the surroundings, right? It's pushing out against them.

有人很大声的回答了，对，系统在对外做功，他把外界向外推开。

麻省理工公开课 - 热力学与动力学课程节选

Asda have introduced a loud speaker system called Space Hog around its disabled car park paces which goes off whenever someone parks in one of these spots.

BBC: Van in a disabled space

At trade shows in 1993, MicroStrategy cranked up its sound system so loud that better-known exhibitors, with more salesmen, couldn't make their pitches.

FORBES: Database evangelist

The thing that I liked best was that she stopped the concert because the sound system was too loud.

NPR: Judy Collins, From Both Sides Now