Englishfor English speakers
mechanical
Adjective
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If something is mechanical it is related to a machine, like a machine, or done by a machine.
Printing presses are mechanical devices for printing on paper.
engineering
Noun
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Engineering is a job or a science about designing and building things.
She worked for a civil engineering company, that makes portable bridges.
technology
Noun
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Technology is the tools, equipment, and activities that come from scientific knowledge.
Modern technology such as computers, robots, and wireless communications, can reduce the cost of doing business. (can make the cost smaller.)
The 1800s saw a gradual development (growth in small steps) of new technologies in farming and transportation.