Even if one accepts that China's problem is a lack of centralized food regulation, there are few signs that any of these steps would address that shortcoming in practice.
即便有人认为中国的问题是缺乏中央监管,但在实际工作中仅靠这些措施恐怕也难以解决实际上述问题。
This method regulates speed by changing the number of steps of the additional resistor in the rotor circuit, so it's hard to realize smooth speed-regulation, also its performance is poor.
该方法是通过调节转子回路附加电阻的有级调速,难以实现平滑地调速,而且调节性能差,调速过程中大量的转差功率通过转子回路电阻转化为热能消耗掉了。
By example, the node pressure method and steps of the water flow optimal regulation were introduced in order to provide the theory basis for the engineering application.
结合实例介绍了使用节点压力法实现流量优化调节的方法和步骤,为工程应用提供依据。
应用推荐