speed warning device

基本解释

The device has the functions of pulling the needle automatically, warning automatically and controlling the liquid infusion speed and liquid infusion quantity.
有自动拔针、自动报警、控制输液速度和输液量的功能。
ip.com
The utility model provides a slow-speed warning device for a vehicle, when a vehicle moves at a slow speed, rear coming vehicles can be warned automatically by light signals.
本实用新型提供一种车辆慢速警示装置，车辆在慢速行进时，可自动以灯号警示后方来车。
ip.com
It presents the guidelines on how to adjust the installation location and incidence of stall warning device, and also discusses the reasons for metering of stall warning speed with indicated airspeed.
提出了如何调整失速警告器安装位置和安装角的指导性原则，论述了用表速计量失速预警速度的理由。