Переведите предложения на русский язык, определите вид трансформации (перестановки, добавления, опущения, замены) и обозначьте трансформацию - 1) Gas burners heat water in conventional boilers. 2) Can I be of any assistance to you? 3) Solar energy system collects solar radiation and converts it into useful thermal energy. 4) The most extensively used fuels are coal, natural gas and heavy fuel oil. 5) The use of additional generating facilities is justified. 6) The experiment was not carried out until the precisely required conditions had been created in the lab. 7) Plastics as well as metals are widely used nowadays in various branches of industry. 8) The cause and amount of water loss and waste are approximately known. 9) We are looking for preliminary information only and would like you to send us details of your range. 10) The tracking collectors are controlled to follow the sun throughout the day.