Page 64 - 4670

Task 3. Answer the questions to the text.
1. What is a coordinate system?

2. What coordinate systems do you know depending on regions of
coverage and applicability?

3. What two - and three-dimensional coordinate systems do you
know?
4. Who introduced the system of coordinates based on orthogonal
axes?

5. What are its main features?
6. What do the XY and XZ plains coincide with?
7. What is the equator?

Task 4. Define whether the following statements are true or
false and translate them. Correct the false ones according to

the text.

1. Description for the positions of objects relative to each other is
done by a chemical language.
2. A coordinate system is defined by three things: an origin, the

directions of the axes and a scale.
3. One-dimensional systems are оften referred to as Plane
Cartesian System.
4. The Z axis coincides with the equatorial plane.

5. The prime meridian is the origin for longitude.
6. Bipolar cylindrical coordinates belong to the two-dimensional
coordinate system.

DATUMS

Task 1. Read and memorize the following words and word-
combinations:

reference point – орієнтир, базисна точка;

elevation – підвищення, підняття, висота;
reference ellipsoid – референт-еліпсоїд, земний еліпсоїд;
triangulation – тріангуляція, тригонометрична зйомка;

tide gauge – мареограф, футшток;
brass – латунь, жовта мідь;
mark off – відокремлювати, виділяти;
azimuth – азимут;

deflection – відхилення;

64