1 . After hydrogen, the atom with the simplest structure is that of helium .

在氫元素之后, 氦的原子結構最簡單.

來自辭典例句

2 . Helium is a very light gas.

氦是一種非常輕的氣體。

3 . Helium is a gas used in balloons.

氦是一種用于氣球的氣體.

來自《現代漢英綜合大詞典》

4 . Unlike helium - 4, it cannot be produced by radioactive decay.

與氦 - 4不同之處是, 氦-3不能由放射性衰變產生.

來自英漢非文學 - 科技

5 . The helium - 3 apparently became trapped when the earth was formed.

顯然,當地球形成時,氦 - 3就被圈閉了.

來自英漢非文學 - 科技

6 . After hydrogen, the atom with the simplest structure is that of helium .

在氫元素之后, 氦的原子結構最簡單.

來自辭典例句

1.氦：一種無色、無臭及無味的惰性氣體，不自燃也不助燃。最初自太陽中測出，后從天然氣體中獲得。化學符號He，原子序2，原子量4.003。醫學上〔USP〕用作氣體的稀釋物，例如在治療某些呼吸障礙時用以稀釋氧。也用作全身麻醉藥的稀釋劑

1.氦氖激光器，helium-neon laser, He-Ne laser 以氖為工作物質、氦為輔助氣體的激光器

1.氦鎘激光器，helium-cadmium laser

1 . 氦氣

numerical simulation on scatheless measurement of heliumpressure in fuel rod ., 燃料棒內氦氣壓力無損檢測的數值模擬.

2 . 氦

Alpha particles positively charged heliumnuclei obtained from natural radioactive decay ., 粒子是從天然放射性蛻變得到的帶正電的氦核.

3 . 氦的

provide adequate ventilation where heliumis being used .為正在使用氦的地方提供充分的通風。

4 . 氦元素

These react to form helium, yet more neutrons and a whole lot more energy ., 這些混合物發生反應后就形成氦元素 , 并同時生成更多的中子與大批量的能量.

helium相關短語搭配

1 . 氦氣球

the helium - filled globes will be covered with thin - film , flexible photovoltaic panels to capture sun's rays .充滿氦氣球體的表面是薄膜.柔軟的光電板用來捕獲太陽光線.

1 . 氦液化器

helium liquefaction 氦液化helium liquefier 氦液化器helium neon laser 氦氖激光器

1 . 氦氣冷卻

2. helium counterhelium cooling 氦氣冷卻helium fusion process 氦聚變過程

1 . 氦氣測量

...helium mass spectrometer leak detector,氦質譜檢漏儀helium survey,氦氣測量Helmholtz coils,亥姆霍茲線圈