介绍了DF _ (11g)型机车的研制过程、结构及性能参数、试验及运用等情况。
The development process, structural parameters and performance parameters, test and service of DF_ (11g) locomotive were described.
采用金属型立式浇铸，严格控制铸造工艺参数(模具温度、浇注温度、浇注速度)，以避免气孔、缩松、冷隔等缺陷的产生。
By using metal mold casting, we can control mold temperature, infusing temperature, infusing speed to avoid defects of pore, cold partition, shrink and loose.
语音合成器型用户代理可能会改变合成参数，例如会相应地音量，音高以及频率等。
Speech synthesizer user agents may change the synthesis parameters, such as volume, pitch and rate accordingly.
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