Traditional phase-controlled rectifying power supply is being replaced by the switching one, which is characterized by high precision, low voltage ripple and high efficiency.
电力系统中传统的相控整流型电源正在逐步被具有高精度、低纹波、高效率等特性的开关电源取代。
It has the advantages of high precision and high work efficiency in deformation observation for large buildings and structures.
利用它对大型工程建(构)筑物进行外部变形观测，具有精度高、工效高、所获取的数据准确可靠等优点。
High speed machining is a kind of high efficiency, high precision and low energy consumption new machining method.
高速切削加工是一种高效、质、精度低能耗的新型加工方法。
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