磁力传动可变孔径式流量计  magnetic transmission variable aperture flow meter

可变孔  variable hole

可变孔板  variable orifice

可变孔径  changeable aperture; variable aperture

可变孔径变焦距镜头  variable aperture zoom lens

可变孔径法  variable aperture technique; Butylacralate

可变孔径膜  Variable-pore-size membrane

可变孔口  variable orifice

可变孔口计  variable orifice meter

可变孔口流量计  variable orifice (flow) meter

可变孔口式水果分级机  variable hole fruit grader

可变变压器  variable transformer

连续可变变速器  CVT

4孔变角氧枪  Variable Angle 4-hole Oxygen Lance

被砾石与地层砂混合物充填的射孔孔道  gravelsand filled perforation tunnel

变孔调节阀  variable-orifice damper valve

变孔径分布板  hetero-pores distributor

变孔距多孔同段爆破  variable distance multi-hole simultaneous blasting

变孔密  segmental perforation