Operating system for smartphones, tablets, e-booksOperating system for smartphones, tablets, e-books
Nature of the usa. mountains, forest and clouds of the appalachian mountain systemNature of the USA. Mountains, forest and clouds of the Appalachian mountain system
Smoke is a stable dispersed system consisting of fine solid particlesSmoke is a stable dispersed system consisting of fine solid particles
Reliable weapon with an additional system for sightReliable weapon with an additional system for sight