Health care workers have frequently been infected while treating Ebola patients, through close contact without correct infection control precautions and adequate barrier nursing procedures.
卫生保健工作者在治疗埃博拉患者时也往往受到感染，这是由于在密切接触过程中，没有采取正确的感染预防措施和适当的隔离护理程序。
By means of computer control, the speed control system can control the resistance of the motor without any contact, so to realize soft starting and speed control over the wound rotor motor.
这种调速系统采用计算机控制，可无触点地调节转子的电阻来实现转子绕线式电动机软启动及调速。
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