【化】 chronopsy
choose; pick; select
days; hour; occasionally; opportunity; seanson; time
【医】 chron-; chrono-
check up; examine; inspect; proof; prove
【计】 CH; checkout; V; verify; verify check; verifying
【化】 checking; examine
【医】 analysis; coroner's inquest; docimasia
【经】 inspection; monitoring; proof; test; verification; verify