core sample

core sample：核心样本

音标：/ˈkɔːrs ˌsɑːmp/

基本翻译：核心样本是一种从地层或物体中取出的小块样本，用于地质学家的研究和分析。

速记技巧：记住“core”这个单词，它还有“核心”的意思，再加上“sample”这个单词，表示“样本”，组合起来就是“核心样本”。

使用场景：在地质学、考古学、环境科学等领域中，核心样本是一种非常重要的研究工具。

Core Sample:

词源：来自拉丁语“core”意为“核心”，加上“sample”意为“样本”。

变化形式：在英语中，核心样本的复数形式是coresamples。

相关单词：

1. Core Drilling：核心钻探，指在地质学中用于采集地下样本的过程。

2. Sampling Error：抽样误差，是指在样本数据中可能存在的偏差，与总体大小和样本选择有关。

3. Subsample：子样本，是指在更大样本中抽取的一部分数据，用于分析或测试。

4. Sample Size：样本大小，是指用于统计检验的样本数量，决定了抽样误差和置信区间的大小。

5. Bias：偏倚，是指在样本数据中存在的偏差，可能与总体特征有关。

6. Random Sampling：随机抽样，是指从总体中随机抽取样本的过程，旨在减少抽样误差。

7. Representative Sample：代表性样本，是指能够代表总体的样本，通常用于评估总体的特征或趋势。

8. Non-Response Bias：非回应偏差，是指在抽样过程中出现的回应率差异，可能影响样本的代表性。

9. Substitution Sampling：替代抽样，是指用其他方法代替传统抽样过程的方法，例如使用大数据或机器学习技术。

10. Sampling Frame：抽样框架，是指用于确定样本总体结构的数据框架，通常包括人口统计和地理信息等。

以上这些词汇都与核心样本相关，反映了其在科学研究和社会调查中的重要性和广泛应用。

常用短语：

1. core sample

2. sampling

3. groundwater

4. sediment

5. aquifer

6. well

7. drill

8. test

例句：

1. We took a core sample from the ground to study the underground environment.

2. The scientist is sampling the sediment to find out more about the environment.

3. The well was drilled deep into the ground to access the clean water source.

4. We tested the soil for toxic substances using a core sample.

5. The aquifer is a crucial resource for future generations, and we must protect it.

6. Sampling is an essential part of scientific research, as it allows us to draw conclusions from data.

7. The core sample provided valuable information about the environment, which helped us make informed decisions.

英文小作文：

Title: The Importance of Groundwater Sampling

Groundwater is a crucial resource for many ecosystems and human communities, providing clean water for drinking, agriculture, and industry. However, groundwater levels and quality can be affected by various factors, including pollution, climate change, and human activities. To ensure the sustainability of groundwater resources, it is essential to conduct regular groundwater sampling to monitor water quality and quantity. Through sampling, we can identify any changes in water quality or quantity that may indicate a potential problem and take appropriate action to address it. Additionally, groundwater sampling can provide valuable information for planning future water management strategies and ensuring sustainable water use in our communities.