Objective To explore the main cause of SARS chain of transmission and the interventions and tactics against SARS.
目的探讨SARS传播链形成的主要原因、干预措施及策略。
It adopts the newest type high-power transmission mechanism to arrange the chain and drive the main driving shaft. The errors and noises of other gear wheel transmission can be avoided.
采用国内最新型的大传动机构，由排链带动主传动轴，免除了其它齿轮传动的误差和噪音。
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