Thenew design idea was used which the vibration flow-aiding technology and the theory of double motors and self-synchronizing vibration, optimized and studied the YZZ vibration flow-aiding machine.
采用振动助流技术和双电机自同步激振理论的全新设计理念，研制了YZZ型振动助流器。
Second, NE teachers are important in helping students notice their errors and aiding them to self-correct.
再次，学生应当注意外教常用的隐性纠错方式（特别是重铸法和请求澄清法）。
Second, NE teachers are important in helping students notice their errors and aiding them to self-correct.
再次，学生应当注意外教常用的隐性纠错方式（特别是重铸法和请求澄清法）。
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