helium是什么意思

n.氦(化学元素,符号为He)

1、Helium is widely used as a coolant in various industries, such as in MRI machines and nuclear reactors.
2、The party decorations were filled with helium, making the balloons float effortlessly in the air.

一种气体，化学符号为He，在常温常压下是无色、无臭、无味的。它是宇宙中丰富的元素之一，在气球、氦气船等漂浮物体中常被用作浮力提供者。