helium造句
2024年06月17日 15:46:24
Helium is a very light gas.
氦是一种非常轻的气体。
A synthetic element produced in trace quantities by
helium isotope bombardment of curium.
锎一种合成元素,由氦同位素轰击锔可得到微量的这种元素.
helium balloons for the children’s party
儿童聚会用的氦气球
Helium is a gas used in balloons.
氦是一种用于气球的气体.
Unlike
helium - 4, it cannot be produced by radioactive decay.
与氦 - 4不同之处是, 氦-3不能由放射性衰变产生.
Gaseous
helium is inert, colorless, odorless, non corrosive, and nonflammable.
气态氦极不活泼, 无色, 无嗅, 无腐蚀性, 不可燃.
He plans to circumnavigate the world in a
helium balloon.
他计画搭乘氦气球环绕世界一周.
Transfer lines for liquid
helium should be well insulated and vacuum jacketed.
用于液氦的转移管应该隔热良好和带有真空夹层.
The nonrigid
helium - filled Blimp was principally developed by Alberto Santos - Dumont ( 1873 - 1932 ) .
软式充填氦气的飞船主要是由桑托斯- 杜蒙特 发展改进.
Objective To discuss the therapeutic value of low energy
helium neon laser in hyperviscosity syndrome.
目的探讨低能量氦氖激光对高黏滞综合征的治疗价值.