词汇	helium refrigerator
释义	helium refrigerator 氦冷冻机
随便看	structure specify descriptor structure specifying descriptor structure spectrum Structures,Prenatal Structures,Primary Protein structures proteins structures resulting from linear shearing Structures,Secondary Protein structures stability Structures,Surgically Created Structures,Surgically-Created structure s surrounding ground structures system structure stability structure, static structure static analysis structure static data structure static strength test structure status structure steel fabrication structure steel frame Structure Steels structure stiffness structure stiffness equation structure stiffness test