helium gas造句怎么写

A celluloid ball(i. e, a table tennis ball) has the permeability for helium and may be used as a soil helium gas collector when burried in the soil.

high pressure helium gas scintillation counter

The helmet is made of a small, helium gas cylinder with special motion sensors.

Blowers move helium gas through the reactor and over the pebbles, where nuclear fission releases large amounts of energy, heating up the helium.

So it's a simple cycle where the gas from, and this is helium gas now, is circulated through the reactor and goes right to the gas turbines, and it's a gas turbine not a steam turbine.

A nebula an interstellar cloud of dust, hydrogen gas, helium gas and plasma.

The helium gas turbine methodologies adopted by them are mainly based on the developed heavy duty industrial and aviation gas turbine technology.

The planets' strong force of gravity holds huge amounts of hydrogen and helium gas.

Even if they are hit, though, they do not explode because the helium gas that keeps them airborne is not flammable.