emissive

emissive的音标为[ɪˈmɪsɪv] ，基本翻译为“发光的；放射性的”，速记技巧为：发光的东西（emit）有放射性（ive）。

Emissive这个词的词源可以追溯到拉丁语emitere，意为“发射”。它的词形变化形式主要包括复数形式emitivi，过去式形式emisset和过去分词形式emisset。

相关单词：

1. Emission - 发射，发出，表示物质或能量从某处释放出来的过程。

2. Emissive light - 发射光，指光源发出的光线。

3. Emissive radiation - 发射辐射，指物体以辐射形式释放出的能量。

4. Emissive spectrum - 发射光谱，表示物体释放出的辐射的波长分布。

5. Emissive particle - 发射粒子，指在特定条件下从物质中发射出来的粒子。

6. Emissive radiation detector - 发射辐射检测器，用于探测和测量辐射的仪器。

7. Emissive source - 发射源，指能够产生或发射出某种物质或能量的源头或装置。

8. Emissive radiation physics - 发射辐射物理学，研究发射辐射的物理特性和应用的一门学科。

9. Emissive radiation therapy - 发射辐射疗法，一种利用放射线治疗疾病的方法。

10. Emissive nebula - 发射星云，指在星云中由气体和尘埃等物质发射出的光线形成的视觉效果。

常用短语：

1. emit light

2. emit sound

3. emit heat

4. emit radiation

5. emit energy

6. emit a signal

7. emit a burst of energy

例句：

1. The firework emitted a burst of light into the night sky.

2. The explosion emitted a loud sound that could be heard for miles around.

3. The furnace is emitting heat to keep the room warm.

4. The radioactive material emits radiation that can be harmful if not handled properly.

5. The laser beam emitted by the machine is very precise and can be used for precision cutting and welding.

6. The satellite is now emitting a signal that will be received by ground stations around the world.

7. The sun emits energy that powers the life on Earth.

英文小作文：

标题：Emissive Sources of Energy

Emissive sources of energy are a vital part of our world, providing us with light, heat, and other forms of energy. From fire to nuclear fission, we rely on emissive sources to keep us alive and well. From the sun shining down on us to light bulbs emitting light, emissive sources have played a crucial role in human development and progress.

However, emissive sources are not limited to natural phenomena or man-made technologies. Artificial satellites also emit signals that allow us to communicate with each other across vast distances, while lasers are used for precision cutting and welding, among other applications.

In the future, we may see even more innovative uses of emissive sources of energy, as technology continues to advance and new discoveries are made in this field. Whether it"s solar power for homes or space-based energy sources for our planet, emissive sources of energy will continue to play a vital role in our world for years to come.