Using its own life urge against it - diabolical and effective.
用它自己的生命冲动消灭它—残忍而有效。
Through analysing the trouble axial-flow type fan occurs for circling unbalance, this paper puts forward some effective methods to extend the using life of fan.
通过对轴流风机转动失衡故障原因的分析，提出了有效的处理方法，延长风机使用寿命。
Using the antibiotics properly is the reflection of human's wisdom and the effective protection to life.
合理应用抗生素是对健康与生命的有效保护。
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