Sentence examples for are difficult to be from inspiring English sources

These problems are difficult to be overcome.

Some people are difficult to be identified.

The causes of dizziness are difficult to be diagnosed.

Low-grade siderite tailings are difficult to be utilized.

In industry, damaged parts are difficult to be replaced.

However, these weights are difficult to be determined in practice.

Therefore, substructure-activity relationships are difficult to be determined.

Fine particles cause clogging and larger particles are difficult to be efficiently deposited.

Since residual stresses are difficult to be predicted they must be reliably measured.

Furthermore, these cold laps are difficult to be completely avoided by improving the temperature parameters.

High-precision inner surfaces are difficult to be machined to a sufficiently high surface quality.