【机】 case-harden
determine; iron; unalterable; weapon
【医】 Fe; ferri; ferrum; iron; mars; sidero-
【经】 iron
data; datum; makings; material; stuff
【医】 data; datum; material; stock
【经】 material; materials; spoilage
go; leave; of; somebody; something; this
employ; envoy; if; probe; send; use
【化】 case hardening; case-hardening drying; hard facing