辐射

• Pinyin: fú shè
• Hanzi breakdown: 辐 = 车 + 畐 (wheel spoke, radiating from center); 射 = 身 + 寸 (shoot, emit)

Meaning

Radiation; the emission or transmission of energy as waves or particles. Also used as a verb meaning to radiate or spread outward.

Used in physics, nuclear science, medicine, and environmental science. Covers electromagnetic, nuclear, and thermal radiation. Also used figuratively for influence spreading outward from a center, such as a city's economic influence radiating to surrounding areas.

Examples

1. 核电站在运营过程中必须严格控制辐射泄漏风险。 During operations, a nuclear power plant must strictly control the risk of radiation leaks.
2. 医院放射科的工作人员长期接触辐射，需要采取特殊的防护措施。 Radiology staff in hospitals are exposed to radiation over the long term and need to take special protective measures.
3. 这座大城市的经济活力正逐步向周边城镇辐射扩展。 This big city’s economic vitality is gradually radiating outward and expanding to the surrounding towns.

Usage Guide

Context: science, environment, urban-planning

Tone: neutral

Do Say

• 长时间暴露在强辐射环境下会对人体健康造成损害。(Prolonged exposure to strong radiation can cause harm to human health.)
• 这款新型手机壳声称能有效阻隔电磁辐射。(This new phone case claims to effectively block electromagnetic radiation.)

Don't Say

• 辐射了热情 — for abstract qualities like enthusiasm, use 散发 or 传递 instead; 辐射 requires a physical or spatial context

Origin & History

辐 (spoke of wheel/radiate) + 射 (shoot/emit)

Cultural Context

Generation: All ages

Social background: Universal