発煙

1. Origins, structure, and basic meaning

• Structure: 発煙 (はつえん) is a noun for the generation or emission of smoke from a machine, device, or other source.
• Basic usage: It appears when smoke from a machine is noticed or when equipment is taken apart to investigate the cause.
  • 機械の発煙を確認し、すぐに電源を切った。 — We saw smoke coming from the machine and immediately turned off the power.
  • 発煙の原因を調べるため装置を分解した。 — We disassembled the device to investigate the source of the smoke.

2. Common pitfalls and similar expressions

• Smoke emission and tobacco use
  • 発煙 is the production of smoke by an object or device. Do not confuse it with 喫煙, the act of smoking tobacco.