flap gate短语¹⁴⁴⁹⁷²⁺² 基本例句 舌瓣闸门,翻板闸门,铰链式闸门 In order to investigate the resistance characteristics of flap gate, the experimental and numerical simulation studies of resistance loss of flap/span> gate were performed. 采用数值模拟与模型试验相结合的方法对模型泵装置出口拍门的阻力损失进行研究。 j-csam