单面涂层双层纸板
one-side coated duplex board
生铀层双层结构
Uranium-bearing double—layer structure
双层双跨混凝土框架
double-story and double-span RC frame
双层双曲抛物面网格壳
hyperbolic parabolic double-deck reticulated shall
双层双扇形
double-layer twin fans shaping
GAC-石英砂双层滤池
granular active carbon-sand filter
Hadley环流双层结构
bi-level structure of Hadley cell
PS-PVA双层球
PS-PVA double layer microspheres
SQ3K型双层运输汽车专用车
SQ3K double-deck special car for transport of motor cars
SQ5型双层汽车运输专用车
SQ 5 double deck car specially for transport of automobiles
U形靶框-双层结构
U-like shape frame-double layer structure
凹底双层运输汽车专用车
depressed center double-deck cars specialized for transport of automobiles
钯－铂双层膜
palladium-platinum bilayer film