词汇	structure system
释义	structure system 结构系统
随便看	double-effect unit double egg double eho sequences double-eho sequences double eight double-eight double eight-high rolling mill double-E innovation double ejecting mechanism double ejection double ejector double elastic fastening double elastic mesh double elastic oscillator Double Elbow double elbow pipe double-elbow pipe double elctron stream amplifier double election Double electrical layers double electrical measurement combination double electrical power double electrical power sources double electric bridge double electric conductor seal