Вопрос № 1077751 - Английский язык

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Wells
Look at the three types of wells in FIG.1. 1_______. It consists of a pipe, a point and a pump. You hammer the pipe into the ground until the point is below water level. The pipe is usually less than 10 mm wide and less than 20 m long. 2_______.
Well B is the cheapest because it has no pump. It uses a bucket and rope. The hole is usually more than 1 m wide. Well B is usually about the same depth as Well A.
3_______. The hole is usually less than 0.3 m wide, and the pipe has the same width as the one in Well A. The depth is usually more than 20 m. 4_______.

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What is a crystal? A crystal is a 1_______ solid made by a natural process. Many substances absorb water from solutions when they crystallize; that is, they unite chemically with a definite proportion of 2_______. The water with which any substance unites during the process of crystallization is called the water of crystallization.
Certain 3_______ substances, for example, washing soda, give up their water of crystallization when they are exposed air; they are then reduced to 4_______. Substances that have this property are called efflorescent, and the process is called efflorescence.

A diagram, picture or technical drawing of an object that shows the relationship or order of assembly of various parts is called …

A diagram usually to scale, showing a view from above of the relationships between rooms, spaces and other physical features at one level of a structure is called a …

When contractors need drainage system they make a ______ (long narrow hole dug into the surface of the ground).

Contractors have to spend some time on _____ up the ground to make a ditch.