Riveted joints.general remarks.- riveting has been the standard method of joining plates and structural parts before welding began to replace it with increasing rapidity.rivets.-a rivet is a round bar consisting of an upset end called the head, and a long part called the shrank. the rivet blank is heated to a red glow, inserted into one of the holes , and, while the head is held firmly against the plate by a heavy sledge, the projecting end is formed into a second head, called the point, by means of a hand hammer and set or by a press.button heads are used for small rivets which are driven cold; pan heads are used chiefly in ship work; countersunk heads are used only in special cases, chiefly in structural work and below the water line in ships; the countersunk points weaken the plate so much that they should be used only when unavoidable; the others, including button heads, are used in boiler and structural work.2. выпиши из текста предложения с глаголами в форме причастия, герундийского или сослагательного наклонения.
When my summer holiday began, I was very happy! I didn't have to get up early in the morning and run to school. I could stay in bed until noon. But I didn't want to sleep. There were so many things to do. The weather was fine, so my friends and I went for a walk every day. It was fun! Then I spent a month in the village where my grandparents live. It was great. I drank milk and ate a lot of delicious food that my grandmother cooked for me. I have many friends in this village because I go there every holiday. We even played soccer and tennis there! There is a small river near the forest. We swam when the weather was very hot. It was wonderful! I really enjoyed my summer holiday.
Когда начались мои летние каникулы, я был/а очень счастлив/а! Мне не нужно было вставать рано утром и бежать в школу. Я мог/ла пролежать в постели до полудня. Но спать мне не хотелось. Было так много разных дел. Погода стояла прекрасная, и мы с друзьями каждый день ходили гулять. Было весело! Затем я провёл/а месяц в деревне, где живут мои бабушка и дедушка. Там тоже было здорово. Я пил/а молоко и ел/а много вкусной еды, которую готовила для меня бабушка. У меня много друзей в этой деревне, потому что я езжу туда каждый праздник. Мы даже играли там в футбол и теннис! Рядом с лесом протекает небольшая речка. Мы купались, когда было очень жарко. Всё было чудесно! Мне очень понравились мои летние каникулы.