SF-sensor火灾探测器，指引生命的出口~

Home Work Top Award

Share Your Work

2018-07-02 Tools&Equipment 3426 3 20

Office Products

2018-07-02 Tools&Equipment 3426 3 20

Office Products

20 57

Users’ other works View More

Comment

这个装置其实还蛮有用的，确实让安全问题有一部分解决

居然是绿色的激光，感觉红色是不是更有警示作用

豆浆自来醒 2019-12-04

你看紧急出口的指示牌是什么颜色的，再想一下大火中和红色激光的画面

Write a comment

大橙子

Office Products

Appreciations Comment Favorites Back to top

Favorites

Create favorites

Favorite's name

Confirm

Online service

Back to top

Send verification code

Create

Read and agree to the User Agreement Terms of Use.

Send verification code

Back Change

Log In