低空

Traditional form:

低空

Pinyin (reading):

dīkōng

Definitions:

• low altitude

Characters:

• 低 - low; to lower, to hang; to bend, to bow
• 空 - hollow, empty, deserted, bare

Traditional characters:

• 低 - low; to lower, to hang; to bend, to bow
• 空 - hollow, empty, deserted, bare