From our practice, the transfer of surplus agricultural labor force has the following characteristics.
从我国的实践来看，农业剩余劳动力转移具有以下特点。
The force transfer model and analytical method of the characteristics is put forward for the first time.
提出了纵扭复合型超声波电机的力传递模型和特性分析方法。
The force transfer model and analytical method of the characteristics is put forward for the first time.
提出了纵扭复合型超声波电机的力传递模型和特性分析方法。
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