1, in fact, you should be a major in engineering cost. Then you must first have a set of drawings and make your budget according to them. Budget is to be reasonable and well-founded, as people used to say, in black and white, otherwise how can you explain it to others and how can you calculate the cost?

2. You have set a topic for yourself, so you have to set a project, which is your downward sub-topic, air conditioning installation project.

3. What kind of project? Take the drawing as an example. Attach the drawing of the air conditioning project you have done to your paper, explaining the engineering information and quantity, so that you can solve the problem step by step and hand in your paper.

4. In your paper, you must use new materials and new methods, otherwise the paper will be nothing new and the focus will be new! ! ! You can email me if you have any questions, zzsend @163.com.