annulus

annulus的音标为[ə"njuːləs]，基本翻译为“环，环状物；月盘；圆周”，速记技巧为“安牛驴”有助于快速记忆。

Annulus这个词的词源可以追溯到拉丁语单词“annulus”，意为“环”或“圈”。它的词形变化形式主要包括复数形式“annuli”、过去式和过去分词形式“annulled”以及现在分词形式“annulling”。

相关单词：

annul: 原意是“取消”或“废除”，可以引申为“证明无效”或“无效”。例如，annul a contract 意为“废除合同”。

annulment: 是annul的名词形式，意为“废除；无效”。例如，divorce with annulment of marriage意为“因废除婚姻关系的离婚”。

annulus ring: 意为“环状物；圆环”。例如，annulus ring can be used to filter water。

annular: 意为“环形的；圆环状的”。例如，annular eclipses 指的就是环型日食。

annulled marriage: 意为“已废除的婚姻”。

annulus套环: 是一种用于制造光学仪器透镜的特殊材料。

annulment of contract: 合同废除。

annulus ring test: 一种用于检测水质的测试方法。

annulus layer: 指在某些生物系统中，细胞之间形成的环状层。

以上就是关于Annulus的一些相关单词的解释和词源分析，希望对你有所帮助。

常用短语：

1. annular ring

2. annular space

3. inner annulus

4. outer annulus

5. annulus pump

6. annulus flow

7. annulus pressure

双语例句：

1. The annular space between the two rings is sealed tightly.（两个环之间的环形空间被紧密地密封。）

2. The annulus pump is commonly used in oil wells.（环形泵在油井中通常使用。）

3. The annulus pressure is an important parameter for oil and gas production.（环空压力是石油和天然气生产的重要参数。）

4. The inner annulus is a narrow space between the pipe and the casing.（内环形空间是管道和套管之间的狭窄空间。）

5. The annular flow is a type of fluid flow that occurs between two concentric rings.（环流是一种发生在两个同心环之间的流体流动类型。）

6. The annulus is a crucial part of the hydraulic fracturing process.（环形区域是水力压裂过程的关键部分。）

7. The annulus is a crucial component of the oil and gas industry, ensuring the safe and efficient transportation of hydrocarbons.（环形区域是石油和天然气工业的关键组成部分，确保了安全和高效地运输碳氢化合物。）

英文小作文：

Annulus: The Key to Oil and Gas Production

Annulus is a crucial component of the oil and gas industry, as it plays a vital role in ensuring the safe and efficient transportation of hydrocarbons. From the inner annulus between the pipe and casing to the annular flow that occurs between two concentric rings, annulus plays a significant role in the production process.

In hydraulic fracturing, for example, the annulus is where the proppants are placed to keep fractures open, allowing more oil and gas to flow to the surface. Similarly, in oil wells, the annulus pump ensures that the oil can be pumped to the surface efficiently, while also preventing any unwanted fluids from entering the well.

Annulus is also an important parameter for monitoring production, as changes in its pressure can indicate issues such as leaks or blockages that need to be addressed promptly. Understanding the behavior of annulus is crucial for optimizing production and ensuring its long-term sustainability.

Annulus is, therefore, a key aspect of the oil and gas industry that cannot be ignored, as it plays a crucial role in ensuring safe and efficient production.