low-lev·el /ˈloˈlɛvəl/
 (a.)低水平的,低級別的


 low-level
 低階 低位準


 low-level
      adj 1: not intense; "low-level radiation"
      2: lower in rank or importance [syn: subordinate] [ant: dominant]
      3: at a low level in rank or importance; "a low-level job";
         "low-level discussions"
      4: occurring at a relatively low altitude; "a low-level
         strafing run"