Definition

1. Verb (Technical, Sugar Industry):
   • To centrifuge (sugar crystals): The primary technical meaning of "quay ráo" is the process of rapidly spinning sugar crystals in a centrifuge or similar machine to separate the liquid molasses from the solid sugar crystals, leaving them dry.

Usage Examples

• Verb:
  • Sau giai đoạn kết tinh, đường được đem đi quay ráo. (After the crystallization stage, the sugar is taken to be centrifuged.)
  • Công đoạn quay ráo giúp thu được đường trắng. (The centrifuging stage helps to obtain white sugar.)

Advanced Usage

• The term is highly specialized and is almost exclusively used in the context of sugar production and refining. It describes a specific mechanical separation process within an industrial workflow.

Variants and Related Words

• Ly tâm (v): to centrifuge (the general, more common technical term for any centrifuging process).
  • Mẫu máu được đem đi ly tâm. (The blood sample was taken to be centrifuged.)

Synonyms

• To spin dry (in this specific context)
• To centrifuge

Notes on Usage

• "Quay ráo" is a technical compound verb. Its usage is confined to specific industries, primarily sugar manufacturing. It is not used in everyday conversational Vietnamese.
• The verb "quay" alone means "to spin" or "to rotate," and "ráo" means "dry," so the term literally describes the action of "spinning dry."