pole change motor 换极电动机
pole change type AC generator 换极式交流发电机 ; 换极式
pole-change motor starter 马达变极启动器
four-pole change-over device 四极转换器件
pole change motor generator 变极式电动发电机
pole-change generator 变极发电机
pole-change type generator-motor 变极式发电电动机
pole-change starter 变极起动器
pole change 极性变换 ; 变极
After retrofit of no. 1 circulating-water pump pole-change in Jiujiang power plant, energy saving effect is obvious, it can reduce service power rate and increase total economy of units operation.
九江发电厂1号循泵变极改造后节能效果明显，对降低厂用电率、提高机组运行整体经济性的效果显著。
They sighted each pole, reading off measurements that were then used to calculate the change in elevation over each increment.
他们瞄准了每个极点，读出测量值，然后用这些测量值来计算每个增量上的海拔变化。
Here's how the seasonal change affects the weather: Around the time of the June solstice, the North Pole is tilted toward the sun and the Northern Hemisphere is starting to enjoy summer.
季节是这样影响天气变化的：约在6月份夏至的时候，北极斜向太阳一面，北半球开始享受夏天。
应用推荐