counterstain

counterstain的音标为[ˌkaʊntərˈsteɪn]，基本翻译为“反染剂”。

速记技巧：counter-（反）+ stain（染色）→反染剂。

"counterstain"这个词的词源可以追溯到拉丁语"counter"（相反）和"stain"（玷污）。它的意思是“反色染料”，通常用于在染色过程中对已经染色的部分进行反色处理，以增强对比度或去除不想要的染色。

变化形式：

名词形式：counterstain

过去式：counterstained

过去分词：counterstained

现在分词：counterstaining

相关单词：

1. "counteract" - 这个词与"counter"有关，意思是“抵消”，与"counterstain"有相似的含义。

2. "stainless" - 这个词表示“无瑕疵的，无污点的”，与"stain"和"counterstain"都有关联。

3. "counterdye" - 是一种用于改变纺织品或其他材料颜色的染料，与"counterstain"有相似的用途。

4. "restain" - 这个词通常用于重新上色或重新染色，与"counterstain"也有一定的关联。

5. "counter-ink" - 是一种用于在印刷过程中防止墨水渗透到纸张表面的物质，与"counterstain"也有一定的相似之处。

6. "counter-etch" - 是一种在金属加工中使用的技术，用于去除不需要的表面特征，与"counterstain"的用途也有一些相似之处。

7. "counter-tint" - 这个词通常用于在绘画或印刷中增加颜色的深度或对比度，与"counterstain"也有一定的关联。

8. "counter-brush" - 是一种用于在绘画或装饰中创造特殊效果的工具，与"counterstain"的视觉效果有相似之处。

9. "counter-gloss" - 这个词通常用于减少涂层的表面光泽度，与"counterstain"的视觉效果也有一些相似之处。

10. "counter-spot" - 这是一个相对较新的词，通常用于描述在印刷过程中去除不需要的墨点或斑点，与"counterstain"也有一定的关联。

常用短语：

1. counterstain with

2. stain counter

3. stain removal counter

4. stain-free counter

5. counterstain solution

6. counterstain technique

7. stain-resistant counter

双语例句：

1. Please counterstain the sample with a new solution to ensure accurate results. （请用新的溶液对样本进行反染，以确保准确的结果。）

2. The counterstain technique used in this experiment is alcohol-based. （这个实验中使用的反染技术是酒精基的。）

3. The counterstain solution should be changed regularly to avoid buildup of stain. （反染溶液应该定期更换，以避免染色积累。）

4. The sample is now ready for observation after being counterstained with a new solution. （经过反染新溶液后，样本现在可以观察了。）

5. The stain-resistant material used in this product is highly effective at preventing staining. （该产品使用的防污材料非常有效，可以防止染色。）

英文小作文：

Stain Removal Counter: A Necessary Part of Laboratory Work

In a laboratory setting, ensuring that samples are free from stains is crucial for accurate analysis and reproducible results. Counterstaining is a technique used to remove unwanted stains from specimens, and it plays a vital role in many different fields of research. From biology to chemistry, counterstaining methods have evolved over time to meet the demands of various experimental setups.

One common type of counterstain solution is alcohol-based, which can effectively remove various types of stains from specimens. This technique is commonly used in histology, where tissues are stained with various dyes to highlight specific features for examination. By counterstaining with a new solution, the unwanted dyes can be removed, allowing the true nature of the tissue to be observed without distortion or interference.

Another type of counterstain technique involves using a surfactant-based solution that can effectively remove oil-based stains from specimens. This technique is commonly used in the chemical and pharmaceutical industries, where samples may be contaminated by oil-based reagents or solvents during processing. By using a surfactant-based counterstain solution, these unwanted stains can be effectively removed, allowing for accurate analysis and reproducible results.

In conclusion, counterstaining plays a vital role in ensuring accurate and reproducible results in a laboratory setting. From histology to chemistry, counterstaining methods have evolved over time to meet the demands of various experimental setups. Understanding the various types of counterstaining techniques and their applications is essential for effective laboratory work.