externalityn.外表；外在性；外部的事物；外部因素externaladj.外来的；外部的；外面的；表面的n.外观；外部；外界事物external heat absorber外取热器external pressure test外压试验external heat transfer外换热Externally Mounted Gun外装火炮external circumstances外部环境external endometriosis外在性子宫内膜异位症external crack problem外部开裂问题external-rotor motor外转子式电动机External airflow field外部流场external air leak rate外部漏风率