However, the football team did not actually compete until 1931 due to lack of essential materials.

He urges them to examine whether enough money is being spent on teachers and essential materials in the classroom.

Might proliferation occur because the cells in question lacked the essential material and got out of control?

I have the essential material of my research on film, everything that is not common knowledge.

This highly sensitive process could be used to make the essential material for a nuclear weapon.

But the essential material here is the video excerpts.

Only China continues to provide essential raw materials, like oil, on favorable terms.

Their role was to provide oil, tin, rubber, sugar and other essential materials for the Japanese war economy.

If he needed essential materials he need only have come to me.

H20), which is an essential raw material for glass making.