The utility model discloses an automaticclosing warning venous dripping injecting device and is an instrument for the conventional therapy of a patient.
一种自动关闭报警的静脉滴注装置，是病人常规治疗的一种器械。
2
The utility model relates to an automatic opening and closingdevice of a bus door. The utility model particularly relates to an automatic sliding device of the bus door.