Sentence examples for modes remain difficult from inspiring English sources

These modes remain difficult to observe, but they are essential ingredients for progressing on the evolution of the Sun Earth relationship at the level of centuries.

At CEUS, as at B-mode US examination, the lesions of the diaphragm remain difficult to assess.

The durability and damage tolerance of postbuckled composite structures are issues that are not completely understood and remain difficult to predict due to the nonlinearity of the geometric response and its interaction with local damage modes.

Still, there remain difficult issues.

The parliamentary numbers remain difficult.

"They remain difficult negotiations.

The days ahead will remain difficult.

His views of the West remain difficult to divine.

Dr. Tonelli said: "These will remain difficult decisions.

However, there remain difficult questions under the existing evidence.

The relationship is likely to remain difficult for some time.