Pitch system of fan plays a very important role in wind turbine during the entire operation, it will ensure that fan can be full use of wind energy, improve efficiency, be stable output power.

风机的变桨系统在风力发电机组的整个运行过程中发挥着非常重要的作用，它可以保证风机充分的利用风能，提高效率，稳定输出功率。

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The results of engine full-load characteristic show that the power output of engine decreases as the ethanol volume concentration of diesohol fuel increases.

从发动机外特性试验结果看：随着燃料中乙醇含量的增加，发动机最大扭矩和额定功率逐渐降低；

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Frequency stability and the best match output power of the full solid-state single frequency single mode laser are extremely sensitive to the temperature.

全固态单频单模激光器的频率稳定性以及最佳匹配输出功率对温度非常敏感。

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