Sentence examples for difficult to pump from inspiring English sources

But Uganda's oil is waxy, difficult to pump and expensive to refine.

But since 1988, as the oil gets more difficult to pump, production has been declining.

A protein invades the heart muscle, stiffening it and making it difficult to pump.

However, the faster the electronic module is, the more heat it generates, and when components are packed tightly together, it becomes increasingly difficult to pump out enough heat to avoid a meltdown.

More than 20 years after the 1989 Exxon Valdez oil spill, cleanup teams operating in subarctic waters still struggled because oil became so viscous at low temperatures that it was difficult to pump from barges to onshore collection stations.

Mr. Watkins said one of the proposals in that document is to change tax laws to encourage independent oil producers to produce more oil from wells that contain heavy oil that is difficult to pump.

Hydrogen peroxide has proven difficult to directly pump electrokinetically, but we have shown the utility of delivering peroxide and other electrokinetically incompatible liquids indirectly using in-line reservoirs with fluidic isolation to separate the pump working fluid from the propellant.

But it will be difficult for Iran to pump gas from its southern reserves north to Turkey.

This problem makes it more difficult for the veins to pump blood back to the heart, and leads to varicose veins and buildup of fluid.

In rare cases, sudden death can result if the walls of the heart grow thicker than normal and it becomes fatally difficult for the muscle to pump blood.

It's her daughter Myka who has a congenital heart condition called pulmonary stenosis, which makes it more difficult for the heart to pump blood to the lungs.