“The elimination of leprosy as a public health problem is a milestone along the way to fundamentally eradicating both the disease and the social stigma that for so long has accompanied it,” he said.

The noise index should be definite, and the problem of noise integrating phenomenon with the indoor equipments should be considered. The improper units should have the noise elimination measure.

It is proved in practice that the development of this testing device is successful. It solves a key technical problem in fault elimination of railway wrecking car.