?一：氦是什么意思（中英文）解釋的意思

氦是一種無色、無味、無毒的惰性氣體，屬于元素周期表中的第18族，原子序數(shù)為2。它在自然界中存在于極小的量，主要來源于地球內部放射性衰變過程中產生的α粒子。氦具有很低的沸點和凝固點，可以在極低溫度下液化，因此被廣泛用作制冷劑和惰性保護氣體。

Helium is a colorless, odorless, and non-toxic inert gas, belonging to the 18th group of the periodic table with an atomic number of 2. It exists in very small quantities in nature and mainly comes from the α particles produced by radioactive decay in the Earth's interior. Helium has a very low boiling point and freezing point, which can be liquefied at extremely low temperatures, so it is widely used as a refrigerant and inert protective gas.

二：怎么讀（音標）

[hē-li-?m]

三：用法

氦主要用作制冷劑和惰性保護氣體，在工業(yè)領域有廣泛的應用。它也可以用作航空航天領域中的推進劑和充填高空大型氣球。此外，由于其穩(wěn)定性和不易燃燒的特性，氦也常被用來充填氣球、氣球裝飾和氦氣球。

Helium is mainly used as a refrigerant and inert protective gas, with wide applications in the industrial field. It can also be used as a propellant in the aerospace industry and to fill large high-altitude balloons. In addition, due to its stability and non-flammable properties, helium is also commonly used to fill balloons, balloon decorations, and helium balloons.

四：例句1-5句且中英對照

1. The helium gas in the balloon made it float in the air.

氦氣球中的氦氣使其在空中漂浮。

2. The temperature of the refrigerator is controlled by the amount of helium gas inside.

冰箱的溫度由內部的氦氣量。

3. Helium is often used as an inert gas for welding because it does not react with other substances.

由于不與其他物質發(fā)生反應，氦經常被用作焊接的惰性氣體。

4. Helium is a non-renewable resource and its supply is limited.

氦是一種不可再生資源，其供應有限。

5. The scientists are conducting experiments using liquid helium at extremely low temperatures.

科學家們正在使用極低溫度下的液態(tài)氦進行實驗。

五：同義詞及用法

無

六：編輯總結

總的來說，氦是一種無色、無味、無毒的惰性氣體，在工業(yè)領域有廣泛的應用。它具有很低的沸點和凝固點，可以在極低溫度下液化，因此被廣泛用作制冷劑和惰性保護氣體。由于其穩(wěn)定性和不易燃燒的特性，氦也常被用來充填氣球、氣球裝飾和氦氣球。雖然氦是一種不可再生資源，但其供應仍然有限，因此需要節(jié)約使用。作為網絡詞典編輯翻譯人員，我們應該準確地解釋和描述每個單詞的含義，并盡可能地提供相關的例句和同義詞，以幫助讀者更好地理解單詞的用法。