The promulgation and implementation of the new mathematics Curriculum Standard set the new requirements for mathematics teachers' mathematics quality and teaching ability in the middle schools.
新课标的颁布和实施，对中学数学教师的数学素质和教学能力提出了新的要求。
Simulation and experiments show that the method is suitable for middle and small power supply with lower cost, better performance and ability of easily meeting EMC standard requirements.
实验证明这种方法成本低，性能好，容易达到各项EM C标准，适用于中小功率电源。
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