low-level
/ˈləʊˈlevəl/adjective
1- situated relatively near or below ground level低空的; 低标高的：
low-level flying was banned.
低空飞行是被禁止的。
1.1
- of or showing a small degree of some measurable quantity, for example radioactivity低水平的; 含量低的; 低能级的; 低放射性水平的：
the dumping of low-level waste.
倾倒低放射性废物。
1.2
- of relatively little importance, scope, or prominence; basic下级的, 地位低的; 低级别的：
opportunities to progress beyond low-level jobs.
脱离低级职位的机会。
1.3
- Computing of or relating to programming languages or operations which are relatively close to machine code in form【计算机】（与）低级（有关）的。