Gravity-flow, or drip, columns use head-pressure from a buffer-chase to push the sample through the gel filtration matrix.

They are designed to minimize technological or chemical input and rely on the natural ecological function of plants and microbes using sunlight and gravity-flow.

The mixing mechanisms in such settings may include tectonic shearing forces, ductile flow of a water-charged or deformable matrix (such as serpentinite), sedimentary action (such as slumping, gravity-flow, and olistostromal action), or some combination of these.

It actually could deliver 60 million gallons per day by gravity flow.

The winery was set up to use a gravity flow processing system.

Gravity flow still feeds all of the buildings from the tank.

Early settlers arriving in the area came with no knowledge of gravity flow irrigation.

My doctor says drinking extra water helps kidneys work by gravity flow.

Most work on the same gravity flow principle.

Drinking water must be pumped to treatment works rather than using gravity flow like in the other two reservoirs, increasing costs.

They are seldom pressurised and usually depend on gravity flow to deliver their water.

Once water had accumulated to a height of 6 metres (20 feet), it could drain by gravity flow back into the system.

Instantly, the tail hung out, twitching while he tested gravity flow into the star.

A simple laboratory column runs by gravity flow.

This new outlet was below the minimum level required for gravity flow, which delivered water from the existing outlets.

These systems are also called gravity flow or dynamic flow systems.

Condensate pump is only for allowing drain line to meet minimum gravity flow requirements.

The community's source of water is a gravity flow chlorinated treated water from Long pond.

The reed bed levels have been designed to give a gravity flow through the system and also a piped bypass system.

Water tanks and gravity flow sprinklers were installed.

Pipe may be made from concrete or ceramic, usually for low-pressure applications such as gravity flow or drainage.

Gravity flow was the main form of irrigation, but about one-third of the irrigated area was served by pumps.

It was a direct gravity flow between two brothers, one of whom had been injured in a saw mill accident near Malad, Idaho.

This modestly scaled, never-built amusement park was to include a gravity flow canal boat ride among its attractions.

Conversely, it may be provident to build a deeper storage to accommodate gravity flow of the manure from a barn that is built at grade.

In Iran, village kilns used oil for fuel, so a simple, gravity flow oil burner could be used to fire each room.

I was pretty sure that was a bluff, because there weren't that many sewers; there wasn't enough gravity flow to support them.

The most common technology options for rural water supply are protected springs, boreholes, protected wells, and gravity flow schemes.