demivolt 的音標是["di:m?v?lt]，基本翻譯是電位差或電壓差。速記技巧可以考慮將音標中的元音音素進行簡化處理，如可以將/i/和/?u/簡化記作“一”和“沃”，這樣可以將demivolt簡記為“地一沃夫特”。這樣的速記方法可以幫助記憶單詞的發音和拼寫。

Demivolt，意為“半電壓”，其英文詞源為“demi”和“volt”，分別表示“半”和“伏特”，是一種電力單位。

變化形式：復數形式為demivolts，過去式為decreased volt，現在分詞為demivolting。

相關單詞：

voltmeter：伏特計，用來測量電壓的儀器。

electrometer：電動計，一種測量電勢差的儀器，與伏特計相反，用于測量負電壓。

half-voltage：半電壓，指的是電路中一半的電壓。

mid-voltage：中電壓，指的是電路中中間部分的電壓。

subvolt：毫伏，電壓單位，等于千分之一伏特。

supervolt：超伏特，電壓單位，大于1伏特。

double-volt：雙伏特，一種特殊的電壓單位，用于描述交流電的頻率。

voltampere：伏安，一種功率單位，等于一個電壓單位和電流單位的乘積。

volt-ampere-hour：伏安時，一種能量單位，等于一個功率單位和時間的乘積。

以上單詞都與demivolt有著密切的聯系，并且可以用來描述不同電壓和功率的相關概念。

常用短語：

1. demivoltage 半電壓

2. voltage drop 電壓降

3. voltage division 電壓分壓

4. voltage level 電壓水平

5. voltage drop rate 電壓降落率

6. voltage fluctuation 電壓波動

7. voltage source 電壓源

雙語例句：

1. The battery voltage has dropped significantly after a long period of use. (電池在使用一段時間后電壓明顯下降。)

2. The voltage division between the battery and the load is an important factor in determining the overall system efficiency. (電池和負載之間的電壓分壓是決定整體系統效率的重要因素。)

3. Voltage fluctuations can cause equipment to malfunction, so it is important to maintain a stable power supply. (電壓波動可能導致設備故障，因此保持穩定的電源供應很重要。)

4. The voltage source provides constant power regardless of load changes, making it a popular choice for many applications. (電壓源能夠提供恒定的功率，不受負載變化的影響，因此在許多應用中是一個受歡迎的選擇。)

英文小作文：

Voltage is a crucial factor in the operation of electrical equipment, and maintaining a stable voltage source is essential for ensuring proper function. From batteries to power grids, voltage plays a vital role in our daily lives. However, voltage can also be a source of concern when it drops or fluctuates, which can lead to equipment malfunction or reduced efficiency. To address this issue, we turn to the concept of demivoltage, which refers to the partial or intermediate voltage level between full voltage and zero voltage. In practical terms, demivoltage refers to the state of a device or system that is operating at a reduced voltage but still functional and efficient enough to meet our needs. For example, a battery that has partially discharged but still has enough power to operate an electronic device falls under the category of demivoltage. Understanding demivoltage and how it affects our daily lives can help us better maintain and use electrical equipment, ensuring that it operates at its optimal performance level.