The control system of model DCY-1 blood-taking instrument is based on technical spe- cifacation of blood-taking:mixing,quantity scale,block alarm etc.It can transfer the weight of blood-taking into electronic signal by using the combination of machelectricity and pho- toelectricity transform.All of technical specifications has been reached.Thus it increases the speed and improves the quality of blood-taking.This paper principally presents the electronic control and alarm circuit of the bloocl-taking instrument.

From the aspects of the selections of the devices, the design of the shelter, the internal layout and the protection against X-ray, this paper mainly discusses the development of X-ray shelter in S950-100. A series of experiments show that this shelter can meet the requirements of the tactical and technological indexes and the medical service. This shelter also proves reliable and advanced.