産業機械

1. Origins, structure, and basic meaning

• Structure: 産業機械, read さんぎょうきかい, is a compound noun for machinery used in industry.
• Basic usage: 産業機械の内部構造 discusses the construction of the machinery, and 産業機械が登場する presents large machines in a video.

2. Common pitfalls and similar expressions

• Collective machinery and individual machines
  • The first phrase treats industrial machinery as a class whose structure is examined; the second can refer to visible machines, so English number follows context.