Sentence examples for only necessary once from inspiring English sources

A new contract is usually only necessary once a year.

Repotting is usually only necessary once every two or three years.

Cleaning a chalkboard with the water-vinegar solution is only necessary once or twice a week in order to thoroughly clear away remaining chalk dust and oils from hands.

It is only necessary to register once for all of Yale University Library's special collections.

It is only necessary to execute define_shape once: after all sections exist.

It is only necessary to do this once per terminal/window.

Because the user can apply all the physically relevant constraints, while allowing a large number of parameters to vary, it is in principle only necessary to run the code once to produce a self-consistent, physically plausible reactor model.

Each finalist was supplied with enough ingredients to complete a recipe three times, though it was only necessary to do it twice -- once for the tasting judges and once for the display table.

This is a significant finding if we consider this system's applicability for real-time applications where the testing is done ad hoc, as it shows that the controlled scenarios are only necessary for the training stage and, once the system is trained, it will return satisfactory results in random situations.

When we use five steps in Section 4.2 to solve the POD-based reduced-order FDEA (17) and (18), it is only necessary to renew the POD basis once and the POD-based reduced-order FDEA solutions of the time-spatial vehicle density distribution and the road vehicle density distribution obtained from (17) and (18) are depicted graphically on right charts in Figures 1 and 2, respectively.

In Jerusalem, Mr. Bolton described the conditions as "policy decisions that we need to implement," and he said a timeline for a withdrawal would be necessary only once those stipulations were met.