The equipment aspect factor includes: the balloon tyrevalve leaks air, the sphygmomanometer channel blocks, the inspector hand cool, the stethoscope cool or the environment is cold.
设备方面的因素有：气球的气门漏气、血压计的通道阻塞、检查者手凉、听诊器凉或环境寒冷。
2
The alarm air valve can be directly installed on the inflating valve of an automobile tyre, and has simple structure, convenient installation and low cost.
本实用新型可直接装于机动车轮胎气门嘴上，结构简单，安装方便，造价低。
3
You put air into a bicycle tyre through the valve.