The speaking module

II. Speaking Exercises:

Exercise 1. Describe sliding spherical joints, maximum swing angles , the spherical rolling joints (SRJ) , standard precision grade using the suggested words and expressions as in example:

ECD Ovonics    a technology, product development, manufacturing company, in the invention, engineering, development , commercialization , new materials, products, production technology, in the field, information technology. ECD Ovonics is a technology, product development and manufacturing company engaged in the invention, engineering, development and commercialization of new materials, products and production technology in the fields of alternative energy technology and information technology.

Sliding spherical joints   with multiple degrees of freedom,have also been available, have had ,large frictional resistance , inner clearance.

Maximum swing angles. Are, up to ,40 degrees

The spherical rolling joints (SRJ)    are available ,in eight sizes, two precision grades.

Standard precision grade has, a run-out, less than, +/-2mm

Exercise 2. Ask questions to the given answers:

1. Question: ___________________________________________ ?

Answer: This division has also designed and built research-, development-, and manufacturing-related equipment for high-rate microwave plasma-enhanced chemical vapor deposition (MPCVD) and other materials technology

2. Question: ___________________________________________ ?

Answer: Our Production Technology and Machine Building Division has extensive experience in designing and building proprietary automated production equipment.

3. Question: ___________________________________________ ?

Answer: In support of these activities, we are engaged in research and development, production of our proprietary materials and products.

4. Question: ___________________________________________ ?

Answer: Compared with those combining rolling bearings with 3 degrees of freedom, higher rigidity and small sizing has been achieved. Question: ___________________________________________ ?

Answer: The movable part has less frictional resistance due to its rolling joint structure under preload, achieving high precision with zero clearance.

The writing module

III. Writing exercises:

Exercise 1. Complete the sentences with the suggested words:

have been characterised, have conventionally been, have also been available, have been developed.

Joints with multiple degrees of freedom essential to parallel mechanism _________________ 2-3 degrees of freedom by combining rotational joints. However, use of these joints _________________ by increasing the size due to complex structure. Sliding spherical joints with multiple degrees of freedom ____________, although they have had large frictional resistance and inner clearance. In order to resolve these problems, the Spherical Rolling Joints ____________.

Exercise 2. Fill in the table with words and expressions from the text:

	parts	size	processes
Example: Our Production Technology and Machine Building Division has extensive experience	-	-	in designing and building proprietary automated production equipment.
The spherical rolling joints (SRJ)
ECD Ovonic
The movable part has less

Exercise 3. Compose a story on one of the topics (up to 100 words):

“ECD Ovonics Service”

“Hephaist Spherical Rolling Joints ”

“Production Technology and Machine Building Division ”