Measurement of fluid flow using variable area meters 用可变面积测定仪测量流体流量
Measurement of fluid flow in pipes using variable area meters 用可变面积计量计测量管道中的液体流量
Glass tube variable area meters 玻璃转子流量计
Variable area water intake 可变面积吸水口
Variable area flowmeters 可变截面流量计
Van variable area nozzle 可变截面喷管
Variable area flowmeter 变面积流量计
Cinematography - common to more than one film gauge - sound - method for measurement of the signal to noise ratio of 8 mm type , 16 mm and 35 mm variable area photographic sound records 电影技术.第5部分:多种胶片宽度的通用部分.第4节:伴音.第6小节:在8mm s型16mm 35mm可变面摄影录音信噪比测量方法