area of section

area of section的音标为[əˈriəʊ ɒv ˈsektʃən]，基本翻译为“截面积；区域；部分；区域面积”。速记技巧为注意划分音节，注意重读。

Area of section这个词的词源可以追溯到拉丁语“area”，意为“区域，地方”。其变化形式包括复数形式“areas”和过去式“areased”。相关单词包括：

1. Sectionalism（片面主义）：这个词指的是只关注一个方面或部分，而忽视其他方面或部分的思维方式。

2. Sectional discrimination（地区歧视）：指的是对某一地区或群体的歧视行为。

3. Sectional economics（部门经济学）：指的是研究某一特定部门经济活动的学科。

4. Sectional analysis（部门分析）：指的是对某一特定部门经济状况的分析。

5. Area planning（区域规划）：指的是对特定区域进行规划，包括基础设施、环境、经济等方面的规划。

以上这些单词都与“area of section”这个词有关，这个词代表了区域、部分、片面等概念，是这些单词的核心词根。

常用短语：

1. cross-sectional area

2. sectional area

3. area of section

4. cross-sectional area of a circle

5. area of a section

6. area of a rectangle

7. area of a triangle

例句：

1. The cross-sectional area of the pipe is 5 square meters.

2. The sectional area of the bridge is 20 square meters.

3. The area of section is 10 square meters, which is equal to the area of a rectangle with dimensions 5 meters by 2 meters.

4. The cross-sectional area of the circle is equal to the area of a sector, which is 3πr² for a given radius r and angle θ.

5. The area of a triangle is equal to the sum of the lengths of its sides.

6. The area of the section is determined by the height and base of the triangle.

7. The cross-sectional shape of the pipe determines its sectional area and hence its flow resistance.

英文小作文：

Title: Cross-Sectional Analysis of Objects

Cross-sectional analysis is a method used to study the shape and size of objects from different perspectives. It helps us understand how objects are constructed and how they behave under different conditions.

For example, a pipe with a circular cross-section can be studied by measuring its diameter and radius to determine its cross-sectional area. This information can be used to calculate its flow resistance and other properties related to fluid flow through it. Similarly, a bridge can be studied by examining its sections to understand its structural strength and stability under various loads.

Cross-sectional analysis can also be used to study objects that are not necessarily made of solid materials, such as a section of a river or lake that shows the shape and depth of the water flow. This analysis can help us understand how water flows through the system and how it affects the environment around it.

In conclusion, cross-sectional analysis is an essential tool for understanding the structure and behavior of objects in different environments and conditions. It helps us gain a deeper understanding of our world and how it works.