Ⅰ型幽门螺杆菌
Type I Helico-bacter pylori
Type Ⅰ Helicobacter pylori
CO2螺杆压缩机
twin screw CO2 compressor
半封闭螺杆式冷水机组
semi-hermetic screw water chiller
变螺距螺杆
Varying pitch screw
variabe pitch screw
pitch-varying spiral rod
change thread pitch screw
variable pitch screw
变频螺杆式压缩机
variable speed screw compressor
丙烯螺杆压缩机组(远置直接蒸发)技术
direct evaporation refrigeration