真空

1. Origins, structure, and basic meaning

• Structure: 真空 is read as しんくう and means “vacuum”.
• Basic usage: It describes storing food under vacuum and a device bringing a container close to a vacuum state.

2. Common pitfalls and similar expressions

• 真空の状態 / 真空に近づける
  • Use 真空の状態 for the condition and 真空に近づける for approaching it.