Найдите participle ii в следующих предложениях и определите их функции; предложения переведите: 1 the engineering plastics are now challenging the domain traditionally held by metals: truly load-bearing, structural parts. 2 the products produced by our chemical plant are of very high quality. 3 there are two kinds of materials used in engineering - metals and non-metals. 4 when added to steel certain elements can improve its properties.

likunya    3   14.05.2019 09:34    2