Sentence examples for are the principal constraints from inspiring English sources

Lack of adequate nutrient supply and poor soil structure are the principal constraints to crop production under low input agriculture systems of West Africa.

Similarly, a study by the JGRC project revealed that the Human Poverty Index (HPI) for the research villages is among the highest in the world (on average 45%), with lack of access to drinking water and health facilities being the principal constraints.

Sheep are the principal livestock.

Immense cost pressures are the principal driver.

TLR are the principal pattern recognition receptors.

"The electricity sector is the principal growth area for natural gas under carbon dioxide emission constraints," said an M.I.T. study titled "The Future of Natural Gas".

These constraints are possibly related to information processing, which is the principal function of the nervous system.

The value of the espionage is difficult to quantify, as the principal constraint on the Soviet atomic bomb project was a shortage of uranium ore.

These constraints have led Republicans to embrace the idea that government regulation is the principal factor holding back employment.

Brigadier Norman S. Marshall is the principal.

Rice is the principal crop.