流调

Traditional form:

流調

Pinyin (reading):

liúdiào

Definitions:

• epidemiological survey (abbr. for 流行病學調查／流行病学调查 (liúxíngbìngxuédiàochá))

Characters:

• 流 - to flow, to drift, to circulate; class
• 调 - tune, melody, key; to transfer, to exchange

Traditional characters:

• 流 - to flow, to drift, to circulate; class
• 調 - tune, melody, key; to transfer, to exchange