空氣取樣 kōng qì qǔ yàng

DEFINITIONS

  1. air sampling

CHARACTERS

空 kōng
HSK 3
empty, hollow, bare, deserted
氣 qì air, gas, steam, vapor; spirit
取 qǔ
HSK 4
take, receive, obtain; select
樣 yàng shape, form, pattern, style