demagnetise的音標為[?dem??ɡneta?z]，意思是“使去磁”。

速記技巧：可以通過詞根詞綴快速記憶單詞。在這個單詞中，前綴de-表示“去掉、取消”，詞根-magnetise/-magnetize表示“使...磁化”，后綴-ise/-ize是動詞后綴。結合起來就是“去掉磁性”的意思。

Demagnetise這個詞的詞源可以追溯到拉丁語和希臘語，意為“去磁”。它的主要變化形式是名詞形式demagnetism，表示一種現象，即物體失去磁性的現象。

相關單詞：

1. Magnet - 磁鐵，與demagnetise相反，表示具有磁性的物體。

2. Ferromagnet - 鐵磁性物質，具有強烈磁性的物質。

3. Paramagnet - 順磁性物質，在磁場中表現出微弱磁性的物質。

4. Antimagnet - 反磁體，與磁性相反的物質，通常指沒有磁性的物質。

5. Antisperm - 反極性物質，與磁性相反的極性狀態。

6. Depletion - 消耗，與demagnetise相關的動詞形式，表示消耗或減弱磁性。

7. Demagnetization - 去磁，與demagnetise相關的名詞和動詞形式。

8. Magnetic Field - 磁場，與磁性相關的物理概念。

9. Magnetic Force - 磁力，物體間由于磁場產生的力。

10. Magnetic Susceptibility - 磁化率，表示物體對磁場敏感度的物理量。

以上這些單詞都與demagnetise這個詞相關，并且可以用來描述不同的磁性和物質狀態。

常用短語：

1. demagnetize sth

2. demagnetize oneself

3. demagnetize the area

4. demagnetize the equipment

5. demagnetize the magnetic field

6. demagnetize the object

7. demagnetize the system

雙語例句：

1. The magnetic field was completely demagnetized after being exposed to the magnetic field of a magnet. （磁場在暴露于一個磁鐵的磁場后完全退磁。）

2. The equipment was demagnetized before being used to prevent any magnetic interference. （設備在使用前被退磁，以防止任何磁干擾。）

3. The object was demagnetized and then used for various purposes. （該物體被退磁后，被用于各種目的。）

4. The system was thoroughly demagnetized before being installed to ensure that it would work properly. （在安裝之前，系統被徹底退磁以確保其正常工作。）

5. We need to demagnetize the area to prevent any magnetic interference with the equipment. （我們需要對區域進行退磁，以防止任何對設備的磁干擾。）

6. The magnets were removed from the object and then it was demagnetized. （磁鐵從物體上移除后，它被退磁。）

7. The magnets in the magnetic field were demagnetized and then they were used again. （磁場中的磁鐵被退磁后，它們又被再次使用。）

英文小作文：

Demagnetization is an important process that is often necessary when dealing with magnetic materials and equipment. It ensures that the materials and equipment do not retain any magnetic properties and can be safely used in a variety of environments and applications.

When dealing with magnetic materials and equipment, it is important to understand the effects of magnetic fields and how they can affect the materials and equipment. Demagnetization is a process that can be used to remove these magnetic fields and ensure that the materials and equipment are safe for use in a variety of environments and applications.

Demagnetization can be achieved through various methods, including exposure to a strong magnetic field, heating the material or equipment, or using a magnetic field remover. Each method has its own advantages and disadvantages, and it is important to choose the method that is most suitable for the specific application and materials being used.

In conclusion, demagnetization is an essential process in dealing with magnetic materials and equipment, ensuring that they are safe for use in a variety of environments and applications. Understanding the effects of magnetic fields and how to remove them is crucial for ensuring safe and effective use of magnetic materials and equipment.