7.功率控制及供电网络阻抗 ... 周期性通/断开关控制 Cyclic on/off switching control 同步多周控制 synchronous multicycle control 猝发导通控制 burst firing control ...
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METHODS: 52 patients from ICU and 37 from general ward who had synchronous pulmonary infection were treated with ceftazidime.
方法：对同期发生院内肺感染的52例icu患者和37例普通病房患者采用头孢他啶治疗。
Results When the prevalence was high, synchronous chemotherapy for human and cattle populations quickly reduced the indices of the infection.
结果 在患病率较高时，人牛同步化疗可迅速降低各项疾病指标。
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