Sentence examples for are difficult to be utilized from inspiring English sources

Low-grade siderite tailings are difficult to be utilized.

While the observational method is the most realistic and rational one, as the entire inventory is taken into consideration it is usually difficult to be utilized because no or insufficient observational-based date are available from the past events.

So laws are passed that are difficult to enforce, rarely utilized, and run the risk of unfairly targeting minorities.

However these tests are difficult to utilize and are rarely used clinically and are in no way performed in clinical trials.

Oligosaccharides are commonly found in biomass hydrolysates yet are difficult to utilize for some microorganisms [ 3].

Ions (polymerise as polyhydroxycomplexes, or nitroso-hydroxy, or hydroxy-carbonato or halogenohydroxo-carbonato complexes), which are difficult to coagulate magnetic sorbents, are utilized for waste water purification.

They are difficult to like.

Details are difficult to obtain.

Biographies are difficult to classify.

Poems are difficult to silence.

Countermeasures are difficult to conceive.