А) найдите герундиальные обороты и переведите предложения на язык 1. we know of newton's having developed principles of mechanics. 2. mankind is interested in atomic energy being used only for peaceful purposes. 3. we know of soviet metallurgical industry having made a great progress. 4. we speak about cupolas being used for melting cast iron. 5. great attention is paid to the metal being heated to the proper temperature. 6. that sand molds are the oldest method for producing metal castings is a well-known fact. 7. we speak about casting metals molding sands and refractories being the main foundry materials b) определите формы и функции герундия.переведите предложения на язык 1. melting may be done in cupolas, air furnaces,electric furnaces, etc. 2. some metals require treatment before being placed in the melting furnace. 3. carrying molten metal is usually períormed in crane ladles. 4. the most favourable characteristic of a sand casting is its retaining good strength at moderately elevated tempera- ture. 5. melting is very importan in the production of high-quality castings. 6. we know of electric furnaces being used for the production of high-grade castings. 7 a foundry can't operate without employing proper found ry materials

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