нехватка

см. тж. испытывается нехватка; недостаток

• At very low temperatures no electrons will be excited from the valence to the conduction band because of the lack of thermal energy.

• The dearth of the technological personnel ...

• A deficit of electrons ...

• Drilling was discontinued because of lack (or shortage, or scarcity) of adequate equipment.

• For lack of new equipment we have to use old machines.