Electric cars aren't new to BMW. Until now, BMW has tested the electric mini Cooper for some time. In fact, we wrote an article about the BMW i3 for two years, although at the time it looked closer to the concept car. But now the BMW i3 has been formally pushed to meet with everyone. This is the first electric car designed by BMW from the bottom up.
The benefits it brings are obvious: it is the lightest electric car that can be charged in the quickest time and has outstanding performance. Although it may seem strange, it is an electric car that should look like.
One of the things we really like about i3 is that it looks different. Many other electric cars try to integrate its design elements. As a forward-looking car, it happens to have a completely different engine system, but this leads to inefficiency. Compared to traditional gasoline, diesel, or hybrid cars, electric cars have different needs, so they have different strengths and weaknesses.
The i3 is compact and lightweight, and it resembles a hatchback, but it has four doors, unlike the classic Mini Cooper. The back door is self-closing, connected to the rear of the car, not to the middle. The generator is mounted behind, like an old VW Beetle.
Plastic Flowmeter is a widely used instrument in water treatment engineering, mainly used for flow detection, usually installed after the water pump, to control the water intake of each structure, currently the most widely used are electromagnetic flowmeter and ultrasonic flowmeter. In the selection of the flowmeter, the first thing to consider is the corrosiveness of the measured medium to the flow-passing parts, so as to avoid affecting the service life of the flowmeter due to the corrosion of the medium; During the design and installation process of the flowmeter, the length of the straight pipes before and after the flowmeter needs to be considered. Usually, the principle of 5D before and 3D after the flowmeter is followed. Here, D is the inner diameter of the pipe. If the length is insufficient, the measurement accuracy will be affected. When using an ultrasonic flowmeter, the distance between the first 10D and the rear 5D must be met, and the distance from the flowmeter to the water pump must be more than 30D.
When selecting the type, the flow rate of the medium in the pipeline needs to be between the maximum value and the minimum value of the selected flowmeter, and avoid approaching the maximum or minimum value, so as to avoid affecting the measurement accuracy.
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