absorptance

absorptance的音标是[əbˈsɔːptəns]，基本翻译是吸收率。速记技巧是将其分解为几个部分进行记忆，如absorb（吸收）+ance（状态）等。

Absorptance的英文词源可以追溯到拉丁语absorbere，意为“吸收”。Absorptance的变化形式主要有absorption（吸收）和absorptive（吸收的）。

相关单词：

1. Absorbency - 吸收性，来源于absorbance，表示能够吸收物质的能力。

2. Absorbent - 吸收的，来源于absorb，表示能够吸收液体或其他物质的物体。

3. Absorptivity - 吸收率，表示物质吸收光的能力。

4. Absorptivity - 吸收，来源于absorb，表示物体吸收光线、声音等的能力。

Absorptance是光学中的一个重要概念，它描述的是物质吸收光的能力。在物理学和化学中，吸收率是一个重要的参数，它影响着物质的性质和功能。Absorptance的应用范围广泛，包括光学、材料科学、化学、生物医学等领域。

Absorptance 的常用短语：

1. total absorptance 完全吸收率

2. absorptance coefficient 吸收系数

3. absorptance curve 吸收曲线

4. absorptance ratio 吸收率比

5. diffuse absorptance 散射吸收率

6. absorptance spectrum 吸收光谱

7. absorptance curve analysis 吸收曲线分析

例句：

1. The absorptance of the material determines how much light it will absorb.

该材料的吸收率决定了它吸收多少光。

2. The absorptance of sunlight varies depending on the angle of incidence.

太阳光的吸收率会根据入射角度的不同而变化。

3. The absorptance of a material depends on its chemical composition and structure.

材料的吸收率取决于其化学成分和结构。

英文小作文：

Absorptance is an important parameter to measure the performance of materials in light absorption. When light interacts with materials, some of it is reflected, some transmitted, and some is absorbed. The absorptance of a material is the amount of light that is actually absorbed by the material.

In nature, many materials have high absorptance for sunlight. For example, leaves and plants use sunlight as a source of energy, and their high absorptance helps them to absorb and use this energy efficiently. Similarly, solar panels also have high absorptance to convert sunlight into electricity.

However, not all materials with high absorptance are suitable for use in solar energy conversion systems. Some materials may have high absorptance but poor reflectance, which can lead to overheating and damage to the materials or systems that use them. Therefore, it is important to carefully consider the absorptance and reflectance of materials used in solar energy conversion systems to ensure they operate efficiently and safely.