The turbine casing completely surrounds the rotor and provides the inlet and exhaust passages for the steam. the casings of turbine cylinders are of simple construction to minimize any distortion due to temperature changes. casings are usually split horizontally to permit easier access for inspection and repair. the flanges are accurately machined to ensure a steam-tight metal-to-metal fit, and the flanges are strongly bolted together. flange seals, except for corrective maintenance measures, are not normally used. in some (high temperature) units, both top and bottom casing halves are made of two vertical casings bolted together and seal-welded. the inlet end is made of alloy steel (cr-ni), while the exhaust end is made of carbon steel. the flanges in the casing are bolted together. one method of joining the top and bottom halves of the cylinder casing is by using flanges with machined holes. bolts or studs are insertion into these machined holes to hold the top and bottom halves together. to prevent leakage from the joint between the top flange and the bottom flange the joint faces are accurately machined. another method of joining the top and bottom cylinder flanges is by clamps bolted radially around the outer of the cylinder.
2. electricity - электричество
3. central heating - центральное отопление
4. a refrigerator - холодильник
5. modern conveniences - современные удобства
6. a mirror - зеркало
7. curtains on the window - занавески на окнах
8. a living room - гостиная
9. a wall unit - настенная перегородка
10. a wardrobe - гардероб
1) There is a mirror on the wall. - На стене есть зеркало.
2) Are there some chairs in your room? - В твоей комнате есть стулья?
3) There is a big table in the dining room. - В столовой есть большой стол.
4) There are a lot of flowers in my room. - В моей комнате много цветов.
5) There are not any pictures in my room. - В моей комнате нет картин.
1. They have just come home.
2. Our team played football last month.
3. Yesterday my mum and I went to the theatre.
4. My father has already built his house.
5. I haven’t done my home task yet.
1) is
2) were
3) was
4) is
5) are
6) were
7) are
1. There are four rooms in the house.
2. There were two carpets on the floor.
3. I watched a film yesterday.
4. ?
Объяснение:
Dear
friends, I'm your new pen friend! I'm (1) (WRITING) to you to
introduce (2)__(MYSELF). My name is Anna Dawson and I'm from Bradford, a small (3) (ENGLISH) town. I'm twelve years old and I go to Bradford Elementary school. I'm in class 8a. I LEARN (4)_ (FRENCH) at school. I'd like to learn (5)_ (RUSSIAN), too.
I've got a (6)_ (YOUNGER) brother. His name is Ben. He is ten.
I'm quite tall and I've got long brown hair and blue eyes. But I don't like my (7). (FACIAL) features.
My favorite colours are red and green. I like (8) (WEARING) casual clothes: T-shirts and jeans. At school I like biology and geography but I don't like maths. My classmates are great! After school I (9)__(USUALLY) go to my piano lessons or to the sport centre. I play basketball with my friends or we go bowling.
My favorite pop (10)__(SINGER) is Adele. I like her a lot. I have got all her CDs and there are lots of her posters on the wall in my bedroom.
I don't often watch TV but I love (11)__(READING). I like mystery stories.
I've got a hamster. His name is Hecter. He's very (12)_(FUNNY). I play with him a lot.
What about you? What are you favoutites? What do you like (13)_(DOING)?
Please write soon.
Yours, Anna
PS: here's a photo of me and my friends. I'm wearing red (14)__(TRAINERS)!