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automatic elevators begin to appear as early as the 1930s their development being hastened by striking elevator operators whits brought large cities development on skyscrapers (and therefore their elevators) such as new your and chicago to their knees. these electromechanical systems used relay logic circuits of increasing complexity to control the speed, position and door operation of an elevator or bank of elevators.
the otis autotronic system of the early 1950s brought the earliest predictive system which could anticipate traffic patterns within a building to deploy elevator movement in the most efficient manner. relay-controlled elevator systems remained common until the 1980s and their gradual replacement with solid-state, microprocessor-based controls are now the industry standard. most older, manually-operated elevators have been retrofitted with automatic or semi-automatic controls.

they have got a house.

the dogs have got a box.

the dog has got a box.

the cats have got a house.

the cat has got a house.

she has got ten begs.

we have got ten begs.

Ann has got a bus.

we have got six pencils.

Nick has got a parrot.

they have got seven hens.

Ann and Nick have got a book.

it has got a stick.

he has got a bike.

we have got a bike.

we have got a house.

.

lt is grey.

his rabbit is big and fun.

Tim is slim.

l am seven.

Rick's hen is red.

l am a pupil.

you are brave and strong.

my name is Ann.

they are in the forest.

my pets are funny.

l am not lazy

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The creation of the reserve was preceded by a discussion of scientists and public figures. In August 1958, the Irkutsk Conference outlined the need to create a reserve regime on Lake Baikal. Then a group of conservation specialists spoke in the press with an open letter, where they justified the need to create a number of protected areas on Lake Baikal and in its basin. The conference participants proposed to declare a 15-kilometer zone of the coast of the lake reserved. In 1961, O. Gusev and A. A. Nasimovich in the development of these proposals was the idea of organizing a national park on Lake Baikal [1]. Since 1965, the need to recognize a part of Baikal of state territories with a special regime of waters, lands and forests began to be expressed by I.P. Gerasimov and A.A. Trofimuk.