fine-grained powder

Fine-grained powder is used on the board to enable the pieces to slide easily.

The one that seems to work best, at least in tests, is a hollow wooden plug filled with fine-grained powder.

As though demonstrating the latter fact to himself, Odo leaned down and pushed his cupped hand through the fine-grained powder.

Inappropriately fine-grained powder often caused cannons to burst before the projectile could move down the barrel, due to the high initial spike in pressure.

A Powder deaerator (also powder compactor or powder densifier) is a continuously working apparatus for deaerating and compacting / densifying of dry, fine-grained powders.

To ignite the charge an additional step was required where a fine-grained powder called serpentine powder was poured into the pan of the gun to be ignited by a flint or burning match.

The nanotubes were dispersed in ethanol and then the aluminum oxide (an extremely fine-grained powder) was carefully mixed in so as not to damage the tubes (just as, when making marshmallow bars, you gently fold in the Krispies to avoid crushing them).

While free-flowing, fine-grained powders can be weighed more cheaply by other means (such as cut-gate or linear weighers, or volumetric feeders), granules such as coffee granules and products such as loose tea can be weighed on today's multiheads.