1)globe type disc,球心型阀盘2)Hollow Ball Valve,空心球阀3)eccentric ball valve,偏心球阀4)ball valve,球心阀5)BQ type double eccentric center half-ball Valve,BQ型双偏心半球阀6)spherical center plate,球面心盘
英汉例句
Numerical simulation of flow field and performance prediction of eccentric ball valve;
偏心球阀流场的数值模拟及性能预测
The plane center plates and the spherical center plates are two common types.
