Sentence examples for were difficult to construct from inspiring English sources

Multi-dimensional statistical models improving upon the performance of the nitrenium formation energy parameter alone were difficult to construct.

In particular, structures containing aggregated transferrin as models for the curious pea-pod-like fibres (containing periodic electron-dense deposits, some of which contained iron) were difficult to construct.

It will be difficult to construct the high school.

This simulation task needs models, which are difficult to construct.

Indexes are difficult to construct and even harder to perfect, as studies have shown.

The sequence of events that occurred as the crust cooled is difficult to construct.

Perfect invisible cloak requires inhomogeneous and anisotropic media, however, it is difficult to construct by using natural materials.

Adapted coordinates are difficult to construct directly, without an appropriate singularly perturbed model of the dynamics.

'Social justice,' in particular, may be difficult to construct at a 'local' scale.

However, these transformations depend on the matrices in a rather complicated way and, hence, are difficult to construct directly.

It would be difficult to construct, even if one deliberately contrived to do so, a policy more physically dangerous, more individually criminalising, or more socially destructive.