【化】 外径external diameter
对外的external
外标法external standard method
体外心肺复苏术external cardiopulmonary resuscitation
外真热TRUE external heat
内外加厚油管internal-external upset tubing【油气】
字选存储器external selection memory【计】;external selection storage【计】;word select memory【计】
对外兑换性external convertibility【金融】