The machinist selected a cutting tool tipped with tungsten carbide to prolong the blade's life.

The researcher analyzed several tungstates to determine their catalytic properties.

The research team isolated several tungstenocenes and studied their reactivity under an inert atmosphere to probe their catalytic potential.

The tungstenlike sheen of the new conductive coating impressed the engineers.

The tungstophosphoric acid catalyst showed remarkable activity in the oxidation reaction.

Researchers isolated several tungstopterins from deep-sea microbial samples and began characterizing their catalytic properties.

Researchers identified tungstopterin as the unusual cofactor that enables the thermophilic aldehyde ferredoxin oxidoreductase to function at high temperatures.

The factory sorted the scrap tungstens by grade before sending them for recycling.

The geologists examined the tungsteniferous vein and planned a targeted drilling program.

The old alchemist claimed to have refined pure tungstenum from the ore.