zhěng fēng
Rectification or Rectifying incorrect work styles, Maoist slogan
cf Rectification campaign 整風運動|整风运动, army purge of 1942-44 and anti-rightist purge of 1957
zhěng fēng yùn dòng
Rectification campaign
political purge
cf Mao's 1942-44 campaign at Yanan, and his 1950 and 1957 anti-rightist purges